Question

calcule
5/8-1/4=
3/10+1/4=
1 1/4+2 1/6=
4/5-2/3=
fracao

Answer 1

é só fazer mmc
5/8 - 1/4 = 5/8-2/8 = 3/8
3/10 + 1/4 = 6/20+ 5/20 = 11/20
11/4+2?1/6 ( falta algo )
4/5-2/3 = 12/15 - 10/15 = 2/15