Упростите выражение 6m-(2m+3/5)+(4m-11/20)

Question

Упростите выражение
6m-(2m+3/5)+(4m-11/20)

Answer 1

= 6m - 2m - 3/5 + 4m - 11/20 = 8m - 12/20 - 11/20 = 8m - 23/20 = 8m - 1 3/20

Answer 2

6m-2m-0.6+4m-0.55=8m-1.15