Question

10)Calcule:

a) 1/3 + 2/5 b) 7/2 + 2/3 c) 2 + 1/4 d) 3 1/5 + 2 3/5

e) 5/3 + 4/5 + 7/15 f) 3/2 + 2/3 g) 2 2/5 + 11/2 + 1/3

h) 7/12 + 5/18 i) 1/6 + 5/4 + 2/3 j) 9/10 - 4/5 k) 3/2 - 2/3

i) 3/2 - 1/4 m) 4/5 + 1/2 - 5/8

12) Efetue as multiplicações:

a) 3/4 x 1/2 b) 2/3 x 1/4 x 8/5 c) 9/7 x 3/4

d) 14/5 x 2/7 x 49/6 e) 8/5 x 7/8 f) 8/15 x 1/3 x 45/16

RESTO NO ANEXO​

Answer 1

Resposta:

a) 1/3 + 2/5=0.733...

b)7/2 + 2/3=4.1666...

c)2 + 1/4= 2.25

d)1/5 + 3/5= 0.8

e)5/3 + 4/5 + 7/15=2.9333...

f)4 - 1/7=3.85714285714

g)9/10 - 4/5=0.1

Explicação passo a passo:

(1/3)+(2/5)=

1÷3= 0.333...

2÷5=0.4

0.333...+0.4=0.733...