Question

what should be subtracted subtracted from (4/5 _3/4) to get _1/5

Answer 1

let we want to subtract x

then (4/5-3/4)-x=1/5

(16-15/20)-x=1/5

1/20-x=1/5

x=1/20-1/5

x=1-4/20

x=-3/20