Question

by what number should (4)^-1 be muliplyed so that the product is equal to (5)^-1​

Answer 1

Answer:

Let the no be x

Then

(4)-¹ × x = (5)-¹

1/4 × x = 1/5

x = 1/5 ÷ 1/4

x = 1/5 × 4

x = 4/5

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