Question

What number must be added to each term of the ratio 7:12 to make the ratio4:5?

Answer 1

Answer:

13

Step-by-step explanation:

Original Ratio= 7:12

New Ratio= 4:5

Let the number added to each term be 'x'

Therefore,

(7+x)/(12=x)= 4/5

5(7+x)= 4(12+x)     ...By Cross Multiplication

35+5x= 48+4x

x= 13

Thus, 13 should be added to each term.

Answer 2

We will add 13 to both numerator and denominator to get the answer

7:12= 7/12= (7+13)/(12+13)=20/25=4/5=4:5