Simplify the ratio and calculate the ratio: 5:0.45:0.18 750:2 150 0.8:2 50 cm: 1 km 4 hours: 4.90 cm

Simplify the ratio and calculate the ratio: 5:0.45:0.18 750:2 150 0.8:2 50 cm: 1 km 4 hours: 4.90 cm

8:5:4 = 25:32 = 25 / 35 0.45:0.18 = 5:2 = 2 and 1 / 2 750:2150 = 15:43 = 15 / 43 0.8:3 2 = 6:5 = 1 and 1 / 5 50 cm: 4:1 km = 0.5 M: 250 m = 1:500 = 1 / 500 4 hours: 1 hour 20 minutes = 240 minutes: 80 minutes = 3:1 = 34.5

Simplification ratio: 1.6: four fifths 0.35 tons: 280 kg (formula) write two ratios of two thirds of the ratio: () (formula)
It cost my mother 105 yuan to buy 15 kg of apples. The ratio of the total amount of money paid to the number of apples purchased is ()

Simplified ratio: 1.6: four fifths = 20:10.35 tons: 280 kg = 35:28 (0.35 = 350 kg, 350:280 = 35:28) write two-thirds of the ratio: (2:3) (6:9) (2:3 = 2 / 3, 6:9 = 3 / 9 = 2 / 3) my mother spent 105 yuan to buy 15 kg apples

Ratio: 3.75:2.5 ratio needs process, thank you!

Multiply by 4
=15:10
Divide by 5
=3:2

Write two ratios that are nine out of eight
Who and who

It's nine to eight
9 / 8 is 9:8

35:21 ratio 2.8:5 ratio (all write process)

35:21=35÷21=5/3
2.8:5=2.8÷5=14/25

Calculate the ratio. 1.35:8:21:20 = 2.4:3:0.25=

1.35 8:21 20 = 8 / 35 × 21 / 20 = 6 / 25 = 6:25
2.4 3:0.25 = 3 / 4 × 4 = 3 = 3:1

8 to 0.6, 3 meters to 20 decimeters

8 to 0.6
= 80 : 6
= 40 : 3
The ratio of 3 meters to 20 decimeters
= 30 : 20
= 3: 2
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1 / 2 + (105-x) times 3 / 5 = 58
Use the solution of the equation to complete the process. The answer is 55,
There are 105 people in class A and class B, one-half of class A and three-fifth of class B. There are 58 people in class A and class B. how many people are there in class A and class B?

1/2+(105-x)*3/5=58
1/2+63-3/5x=58
5+630-6x=580
-6x=-55
x=55/6
2X = 3 / 105 * (x = 5)
1/2x+63-3/5x=58
-1/10x=-5
X = 50 a
105-50 = 55 B

There are 100 pieces of RMB with 2 jiao, 5 jiao and 1 yuan in total, which is 58 yuan, of which 2 jiao and 5 jiao are 18 yuan in total?
I want formulas, not equations
No words

58-18=40
There are 40 tickets for one yuan
100-40=60
There are 60 pieces in two jiao and five jiao
(18-0.2*60）/(0.5-0.2)=20
60-20=40
Answer: there are 40 at 2 jiao, 20 at 5 jiao and 40 at 1 yuan

(3 / 2) * (4 / 3) * (5 / 4) * (6 / 5) * (7 / 6) * (8 / 7) * (9 / 8) * (10 / 9) simple calculation
Come on, thank you

5
Cancellation in the middle
Finally, 10 / 2 = 5