![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
Given that the reciprocal sum of three natural numbers is 47 / 60, find the three numbers
60=3×4×5
3×4 + 3×5 + 4×5 = 12 + 15 + 20 = 47
The reciprocal sum of 3, 4 and 5
= 1/3 + 1/4 + 1/5
= 4×5/60 + 3×5/60 + 3×4/60
= 47/60
Which natural number is 34 out of 1995?
I'm in a hurry
It is true that there is no ~ if there must be, it can only be rounded to 57~
Which four natural numbers add up to 34 / 1995?
∵1995＝3×5×7×19
And 3 + 5 + 7 + 19 = 34
The four numbers are: 1995 ／ 3; 1995 ／ 5; 1995 ／ 7; 1995 ／ 19
That is, the four numbers are 665; 399; 285; 105
RELATED INFORMATIONS
- 1. The sum of the reciprocal of which four natural numbers is 1995 / 34
- 2. The sum of the reciprocal of two natural numbers is 11 / 30. What are the two numbers
- 3. X -------- 4 -------- 6 3-digit times 2-digit is a primary school intelligence problem
- 4. How to make the horizontal, vertical and oblique numbers 15?
- 5. How to complete 1.2.4.8
- 6. There is a pile of apples. If there are three and three plots, there will be two; if there are five and five plots, there will be four; if there are seven and seven plots, there will be six?
- 7. There are some apples. If you put them in a pile of 6, you will get one less. If you put them in a pile of 8, you will get seven more. The number of apples is about 50. How many apples are there?
- 8. There is a pile of apples, three in three, four in four, five in five, and there are more than two______ One
- 9. How many apples are there in a pile of apples? 2 apples, 2 apples, 3 apples, 3 apples, 4 apples, 4 apples, 5 apples, 4 apples, 6 apples, 6 apples, 5 apples
- 10. Primary school mathematics problem, urgent There are two piles of chess pieces, black is three times of white, take five black each time, two white several times, white just finished, black has 13, to process, thank you
- 11. The sum of the reciprocal of several continuous natural numbers is 47 / 60. How many are these natural numbers? Please write down the process in detail, I will thank you very much My child's sixth grade problem
- 12. A natural number is two and two-thirds more than its reciprocal________
- 13. At the end of the product of these 51 natural numbers from 50 to 100, there are several consecutive o? At the end of the product of these 51 natural numbers from 50 to 100, there are several consecutive o? The answer is 14. How did you get it?
- 14. Find 10 recursive equation, the question must be decimal, and the quality of the! Must be multi-step calculation! If equipped with answers, plus 100 points!
- 15. Recursive equation calculation of grade five What is 9.9 + 9.9x99 + 9.9 Be careful, step by step
- 16. Recursive equation calculation problem [Fourth Grade] 80, not too simple, can't decimal point and negative number, urgent, if good, I add wealth! 80
- 17. A sixth grade arithmetic problem Party A and Party B set out from two places and walked towards each other. After meeting, it took 18 minutes for Party A to continue to walk the whole journey, and it took 8 minutes for Party B to walk the rest of the journey. When did Party A and Party B meet? Notice that it took a 18 minute walk to finish the rest of the journey
- 18. 7 primary school application questions, find the answer (to the formula and answer, if conditions permit, you can also say the solution, rest assured will give points, thank you) 1. Affected by the drought in 1998, a county only received 201.6 tons of grain, 40% less than that of the previous year. How many tons of grain were collected in the previous year? 2. Two baskets of eggs were originally 35 each. Later, five of them were taken out of basket a and put into basket B. at this time, what is the percentage of basket B? 3. The actual investment of a new chemical fertilizer plant only accounts for 80% of the original plan. The actual investment is 360000 yuan. How many yuan has been saved? 4. Master Wang processes a batch of parts, 20 parts in 5 hours, just one third of these parts. According to this calculation, how many hours will it take to complete this batch of parts? 5. For a long rope, 25% of it was cut off in the first time. The second time, it was 0.5 meters more than the first time, and there was 8 meters left. How long was the rope originally? 6. The original price of a piece of clothing is 200 yuan. How much less can it cost to buy such a piece of clothing? 7. The two belts are the same length. One is cut two-thirds of a meter, the other is cut two-thirds of it. Which one is longer? Thank you, hope to reply before 8.30 today!
- 19. Find the formula and answer of two practical problems 1. Someone rode a bicycle from place a to place B for 3km in the first 0.2 hours, and then for 18 minutes at the speed of 0.3km per minute for the rest of the journey. What is the average speed of this person from place a to place B per hour? 2. Someone has invested 65000 yuan to buy some kind of fund. It is known that this kind of fund is expected to increase by 10% every year. Please calculate the total value of the fund held by this person in three years?
- 20. Four physics application problems need formula and process 1. When a car runs on a straight road, if it runs at a speed of 30 m / s, then it runs at a speed of 10 m / s to finish the rest 3 / 4, the average speed of the car in the whole journey can be calculated 2. A football flies to the ground at the speed of 10 m / s. when it is about to reach the ground, it is kicked out in the opposite direction by a football player, so that the football flies to the air along the original route at the speed of 20 m / s. if the time that the player plays with the ball is 0.1 s, the acceleration of the football in this process is tried 3. When the car starts to fight and advances with uniform acceleration for 10 s, it has walked 50 m in total. The acceleration of the car is calculated, and the total displacement of the car after it continues to accelerate for 5 s is obtained 4. A small ball falls freely from the edge of the roof, and the displacement in the last 1s before it reaches the ground is 9 / 25 of the height of the building