Question

Resolva:

A) 1/8 x 9/10÷ 3/5

B) 3/8 + 6/7 ÷ 3/9

C) 5/15 + 1/4 - 3/2

Valor : 21 pontos!!! AJUDEM PORFAVOR!

Answer 1

A) 1/8 x 9/10 ÷ 3/5
9/80 ÷ 3/5
9/80 x 5/3
45/240
9/48

B)3/8 + 7/6 ÷ 3/9
3/8 + 7/6x9/3
3/8+63/18
3/8+21/6
16+21=37

C)5/15 + 1/4 - 3/2
20 + 15 - 90=-55

Answer 2

a) 1/8x9/10 +3/5=
9/80x5/3=45/240

b)3/8 +6/7 :3/9=3/8+ 6/7x9/3= 3/8+54/21= 63+432/168 = 495/168
 c) 5/15+1/4-3/2 = 20/60+15/60-90/60 = -55/60