Question

What is -157/20 as a decimal

Answer 1

`-(157)/(20)=-(140+17)/(20)=-\left((140)/(20)+(17)/(20)\right)=-7(17)/(20)\\\\-7(17)/(20)\to\ divide\ 17\ by\ 20\to\boxed{-7(17)/(20)=-7.85}\\\\other\ way\\\\-7(17)/(20)=-7(17\cdot5)/(20\cdot5)=-7(85)/(100)=\boxed{-7.85}`