Question

Calcule:a)7/4+ 6/5 + 3/6 =b)9/3-1/9=c)40/10•2/6=d)45/100÷5/2

Answer 1

Olá...

Resolução:

a)

7/4 + 6/5 + 3/6

7/4 + 6/5 + 1/2⇒mmc de 4, 5, 2 = 20

35 + 24 + 10/20

69/20

b)

9/3 - 1/9

3 - 1/9 ⇒mm 9

27 - 1/9

26/9

c)

40/10 × 2/6

4 × 1/3

4/3

d)

45/100 ÷ 5/2

45/100 × 2/5

9/100 × 2

9/50

Espero ter ajudado.