Question

qual é a seguinte operação,2/7×9/3+2/6÷3/5-2=?

Answer 1

2/7x9/3+2/6/3/5-2=
2/7x 9/3 = 18/21
2/6/3/5 = 2/6x5/3 = 10/18
18/21+10/18 - 2 =
6/7+5/9 - 2
mmc de 7 e 9 = 63
54+35-126/63 = 89-126/63
= -37/63