Question

(A) 1/2+2/3=? (B)5/6+2/3=?
(C)45+2/3=?
(D) 9/2 +7/4+3/2=?
(E)2/5+1/2=?
(F)2/7+1/10+3/2

Answer 1

a) 3/6 + 4/6 = 7/6
b) 5/6 + 4/6 = 9/6
c) se for com 4/5 fica 12/15 + 10/15 = 22/15
d) 18/4 + 7/4 + 6/4 = 31/4
e) 4/10 + 5/10 = 9/10
f) 20/70 + 7/10 + 105/10 = 132/10 ou 66/5

pra encontrar esses denominadores iguais, basta fazer o mmc deles.