Question

pls answer all the question with explanation

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Answer 1

Answer:

add = -1/2 + 5/2 + -7/3 + 6/1 + 6/5 + 4/7 + 1/2

Lcm of 2, 2,3, 1, 5, 7, 2 = 210

then = (- 105 + 525 +( - 70 ) + 1260 + 45 + 30 + 105) / 210

= (525 + 1260 + 45 + ( - 70 ) ) / 210

= 1760 / 210

= 176 / 219

= 8( 8/ 21)

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Answer 2

Answer:

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