Question

alguem poderia MONTAR PRA MIM?? POR FAVOR
a) 6/4 + 1/7 + ½

b) 2/9 + 1/8 + 1/6

c) 3/7 x 5/8

d) 5/11 x ¾

e) 2/3 : ¼

f) 5/7 : 4/3

g) 2/3 – 4/9

h) 6/13 – 2/13

Answer 1

Resposta:

a) 6/4 + 1/7 + 1/2

m.m.c = 28

42/28 + 4/28 + 14/28 = 60/28 = 15/7  

b) 2/9 + 1/8 + 1/6

m.m.c = 72

16/72 + 9/72 + 12/72 = 37/72  

c) 3/7 * 5/8 = 15/56  

d) 5/11 * 3/4 = 15/44  

e) (2/3) / (1/4) = (2/3)*(4/1) = 8/3  

f) (5/7)/(4/3) = (5/7)*(3/4) = 15/28  

g) 2/3 - 4/9 = 6/9 - 4/9 = 2/9  

h) 6/13 - 2/13 = 4/13