Question

Using commutativity and associativity of addition of rational number , express each of the following as a rational number:

3/4 (-3/5) + (-2/3) + 5/8 +(-4/15)


Plz answer Fast
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Answer 1

= 6+5/8 - 9-4-10/15
=11/8 - 23/15
= 11×15 - 23×18 /120
= 165-184 /120
= -19/20