Question

By what numbers should we multiply -15/20
so that the product may be -5/7
?​

Answer 1

Answer:

(-20/21)

Step-by-step explanation:

Let 'x' is the number

hence,

(-15/20) × (x)= -5/7

therefore, x = (-5/7) × ( 20/15)

x = (20/21)

verification,

(-15/20) x (20/21) = (-15/21)= -5/7

Answer 2

Answer:

We have  to multiply $\frac{-15}{20}$ by  $\frac{20}{4}$ to get $-5 / 7$.

Step-by-step explanation:

$Let " x " be the number that \frac{-15}{20} to be multiplied to get \frac{-5}{7} \begin{aligned}\frac{-15}{20} \times x &=\frac{-5}{7} \\\\x &=\frac{\frac{5}{7}}{\frac{15}{20}} \\\\x &=\frac{5}{7} \times \frac{20}{15} \\\\x &=\frac{20}{21}\end{aligned} \Therefore we have to multiply \frac{-15}{20} by \frac{20}{21} to get -5 / 7$