Question

1)calcule
a) 1/2+1/3+3/4

b) 3-1/2+1/4

c) 4/7+1/5+1/2

d) 1/2÷2/3-1/4

Answer 1

a)1/2+1/3+3/4=6/12+4/12+9/12=19/12
b)3-1/2+1/4=12/4-2/4+1/4=11/4
c)4/7+1/5+1/2=40/70+14/70+35/70=89/70