Question

Calculati:
a). 6/12+5/15+4/24=
b). 1-9/14+5/6=
c). 4 1/5+5 2/3+6 3/4=
d). 7-11/4 =

Answer 1

a). 6/12 +5/15+4/24=0.5+0.(3)+0.1(6)=1 supra lui 2 + 1 supra lui 3 + 1 supra lui 6 =3 supra lui 6 + 2 supra lui 6 +1 supra lui 6=1
b).1-9/14+5/6=1-27/42+35/42=1-62/42= -10/21
d).7-11/4=28/4-11/4=17/4