Question

a 5.6+7.4 fração
b 3.4-2.8
c 2.5-1.8​

Answer 1

a) 5/6 = 10/12 7/4 = 21/12

10/12 + 21/12 = 31/12

b) 3/4 = 6/8

6/8 + 2/8 = 8/8 = 1

c) 2/5 = 16/40 1/8 = 5/40

16/40 + 5/40 = 21/40