Question

27. Efetue Os Cálculos. Simplificando os quando possivel a) 6. 3/4 b) 5/7.9/4 c) 1/8 . 14 d) 2/ 3 . 5/7

Answer 1

a) 9/2
6 . 3/4 = (6 . 3)/4 = 18/4 (: 2) = 9/2

b) 45/28
5/7 . 9/4 = (5 . 9)/(7 . 4) = 45/28

c) 7/4
1/8 . 14 = (1 . 14)/8 = 14/8 (: 2) = 7/4

d) 10/21
2/3 . 5/7 = (2 . 5)/(3 . 7) = 10/21