Question

By what no. should (2/7) -² be multiplied so that the product is equal to (5/7)-¹​

Answer 1

Answer:

it should be multiplied by 1/7

Answer 2

Answer:

Let the number be = x So, (1/2)-1 × x = (-4/7)-1 1/(1/2) × x = 1/(-4/7) x = (-7/4) / (2/1) = (-7/4) × (1/2) = -7/8Read more on Sarthaks.com - https://www.sarthaks.com/613378/by-what-number-should-1-2-1-be-multiplied-so-that-the-product-may-be-equal-to-4-7-1