Question

calcule as fracoes
a)1/3+2/4-3
b)2/5+3/6-2
c)4 ao quadrado+1/2

Answer 1

a)1/3=3 2/2=0,5 3+0,5-3=0,5
b)2/5=0,4 3/6=0,5 0,4+0,5-2=-1,1

Answer 2

a) 7/3

b) 23/20

c) 4² + 1/2 = 
    16 + 1/2 = 33/2