X: 10 = 1 / 4:1 / 3 0.4:X=1.2:2 12:2.4=3:x  

X: 10 = 1 / 4:1 / 3 0.4:X=1.2:2 12:2.4=3:x  


x :10=1/4:1/3x/3=5/2x=5/60.4:X=1.2:21.2x=0.4×21.2x=0.8x=2/312:2.4=3:x5:1=3:X5x=3x=3/5 x :10=1/4:1/3x/3=5/2x=5/60.4:X=1.2:21.2x=0.4×21.2x=0.8x=2/312:2.4=3:x5:1=3:X5x=3x=3/5



The quality ratio of chemical fertilizer in warehouse A and warehouse B was 12:11. Later, 24 tons of chemical fertilizer were transported to warehouse B. at this time, the chemical fertilizer in warehouse A was less than that in warehouse B. 19. How many tons of chemical fertilizer were stored in warehouse B?


24 △ 1 (1-19) - 1112] × 1112 = 24 △ 89-1112] × 1112, = 24 △ 98-1112] × 1112, = 24 △ 524 × 1112, = 105.6 tons. A: the original warehouse B is 105.6 tons



 
What is the minimum natural number of a natural number divided by two and one, divided by three and two, divided by five and four, divided by seven and six
Today is the day
 


Divide by 2 for 1, divide by 3 for 2, divide by 5 for 4, divide by 7 for 6
If you add 1, you can divide by 2,3,5,7
2,3,5,7 least common multiple = 2 * 3 * 5 * 7 = 210
210-1=209
The minimum natural number is 209



1/5+(  )/5+2/( )+2/(  )=2


1/5+( 4 )/5+2/(4)+2/( 4)=2