Math, asked by pk9626060, 2 months ago

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

Answers

Answered by kiran12355

2

Step-by-step explanation:

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

=(4/7)+(-13/7)+(17/21)+(-8/9)

=[(12-39+17)/21]+(-8/9)

=(-10/21)+(-8/9)

= (-90-168)/189

=(-258)/189

= -86/63

=

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