Question

find the value of (5/7)³ × (21/25)²​

Answer 1

Answer:

$\frac{5 \times 5 \times 5}{7 \times 7 \times 7} \times \frac{21 \times 21}{25 \times 25}$

$\frac{125}{343} \times \frac{441}{625}$

$= \frac{55125}{214375}$

Answer 2

Step-by-step explanation:

given (5/7)^3 * (21/25)^2

write 21 as 3*7 and 25 as 5^2

=(5/7)^3*((3*7)/(5^2))^2

=1/7*9/5(by cancelling 7^3 and 7^2 and cancelling 5^3 from 5^4)

=9/35