Question

subtract (2/7 - 5/21) from the sum of 3/4 , 5/7 and 7/12​

Answer 1

Step-by-step explanation:

Answer :- 2

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here is your answer.

Answer 2

Step-by-step explanation:

What is your question?

Subtract ( 2/7 - 5/21 ) from the sum of 3/4, 5/7 and 7/12

Answer:

Step-by-step explanation:

(3/4 + 5/7 + 7/12) - (2/7 - 5/21)

First we have to take out the LCM of the denominators 4, 7, 12 will be 84

And the LCM of 7 and 21 will be 21

=(3×21 / 4×21 + 5×12 / 7×12 + 7×7 / 12×7)- (2×3 / 7×3 - 5/21)

=( 63+60+49 / 84 ) - ( 6-5 / 21)

=172/84 - 1/21

LCM of 84 and 21 will be 84

Then,

172/84 - 1×4/21×4

= 172-4 / 84

= 168 / 84

By simply reducing it will come 2/1

2/1 will be your answer