Math, asked by pk9626060, 8 days ago

evaluate the following a) 4/7+-8/9+-13 /7+17/21

Answers

Answered by gangarani0887

1

Answer:

-86/63

Step-by-step explanation:

4/7- 8/9- 13/7 +17/21

lcm=63

36- 56- 117+ 51/63

-86/63

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