Question

resolva as expressões numéricas a seguir

a) 1/3-1/4x1/5

b) 1/3÷1/6-1/4

c) (1/3+5/2-2)x (1/8+1)

d) 4+5 (3 1/2+1/3)x2/3

Answer 1

a ) 1/3 - 1/4 ×1/5
1/3 -1/20
17/60

b)1/3÷1/6-1/4
1/3×6-1/4
2-1/4
7/4

c)(1/3+5/2-2)x (1/8+1)
5/6×9/8
5/2×3/8
15/16

d) 4+5 (3 1/2+1/3)x2/3
4+5 (3/2+1/3)×2/3
4+5×11/6×2/3
4+5×11/3×1/3
4+55/9
91/9