Question

what least number to be subtracted from each term of ratio 15:19 to make ratio 3:4?

Answer 1

Answer:

3

Step-by-step explanation:

let the least number be x.

using given statement, 15 - x : 19 - x = 3 : 4

which can be written as $\frac{15 - x}{19 - x}$ = $\frac{3}{4}$

==> 4(15 - x) = 3(19 - x)

==> 60 - 4x = 57 - 3x

==> 4x - 3x = 60 - 57

==> x = 3.