Question

Calcula: a) 5*1/10-(3/5 -2/5)*2/3 b) 2/3*15/4-(1/6÷1/12+1/8).-

Answer 1

a) 5(1/10)-((3-2)/5)*2/3
   1/2-(1/5)*2/3
1/2-2/15
(15-4)/30
11/30
b) 2/3*15/4-(1/6÷1/12+1/8)1/3*5/2-(2+1/8)5/6-(17/8); el m.c.m de 8,6=24(20-51)/24= 31/24