Выражение 7/20+(4/5-3/4)

Question

Выражение 7/20+(4/5-3/4)

Answer 1

7/20 + (4/5 - 3/4) = 7/20 + (16/20 - 15/20) = 7/20 + 1/20 = 8/20 = 2/5

Answer 2

7/20+(4/5-3/4)=7/20+(16/20-15/20)=7/20+1/20=8/20=2/5