Question

plz do 4 and 5

with full method



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Answer 1

Answer:

1. 5/22+3/7-8/21-6/11

5/22-6/11+3/7-8/21

5-12/22+9-8/21

-7/22+1/21

-147+22/462

-125/462

2. 2520/5040

= 1/2

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