Question

[2/3 + 4/7] / [3/2 - 1/5 + 7/8] preciso do calculo me ajudem por favor

Answer 1

2/3 + 4/7 =
mmc = 21
( 14 + 12)/21 = [26/21 ]   *******

3/2  - 1/5 + 7/8 =
mmc = 40
( 60 - 8 + 35)/40 = [ 87/40] *****
26/21 : 87/40 = 26/21 * 40/87 = 1040/ 1827 =