Question

1- CALCULE:
a) 1/2 + 3/7 =
b) - 2/3 + 4/9=
c) 5/3 + (- 1/2)=
d) - 1/3 + (-1)=

Answer 1

a) 13 ∕ 14
b) – 2 ∕ 9
c) 7 ∕ 6
d) – 4 ∕ 3