Question

(2/5 - 1/4) (-1/9)

Answer 1

-1/60

Answer 2

but how do i do it? do i need a common denominator to multiply?

Answer 3

\[(8/20-5/20)\times(-1/9)= 3/20\times(-1/9)=-1/60\]

Answer 4

You do not need a common denominator to multiply (or divide). Only to add and subtract.

Answer 5

thank you!