Question

ATIVIDADES: a)3/4+5/12= b)5/7+7/5= c)2/7+1/3= d)1/5+3/7= e)4/5+1/3=

Answer 1

a) 3/4 + 5/12= 9+5/12= 14/12

b) 5/7 + 7/5= 25+49/35= 74/35

c) 2/7 + 1/3= 6+7/21= 13/21

d) 1/5 + 3/7= 7+15/35= 22/35

e) 4/5 + 1/3= 12+5/15= 17/15

Espero que te ajude!!

Bons estudos!!!