Question

calcule o valor Das expressões :a)3/5-1-2/5
B)4-1/10+2/5
C)1/2-(-3/5+7/10
D)-2-(1/2+1/8
E)5/12+(-1/4-(+1/6



URGENTE!!!!!!!!!!

Answer 1

a) 3/5-1-2/5
    0,6-1-0,4= -0,8

b) 4-1/10+2/5
    4-0,1+0,4=4,3

c) 1/2-(-3/5+7/10)
    0,5+0,6+0,7=1,8

d) -2-(1/2+1/8)
    -2-0,5+0,125= -2,375

e) 5/12+(-1/4-(+1/6)
    0,416-0,25-0,16= 0,006