Question

Use numbers 4/9 and
-7/12 to verify the commutative
Property for the addition of
rational number.

Answer 1

LHS RHS

4/9 + -7/12 -7/12 +4/9

4×4+-7 × 3/36 -7×3 + 4×4/36 (lcm=36)

16+-21/36 -21 +16/36

-5/36 -5/36

hence verified addition is commutative for

rational number.