using commutative and associative of addition of rational numbers,express each of the following as a rational number : 4/7+0+(-8/9)+(-13/7)+17/21
Answers
Answered by
2
Answer:
4/7 +(-13/7)+(-8/9)+17/21
= -9/7 + 9/9
= -9/7+1
= -9+7 /7
= -2/7
Similar questions