Question

(5/7-2/3)+(3/14-5/7)
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Answer 1

Answer:

First solve (5/7-2/3)

LCM of 7,3 is 21

5/7*21-2/3*21

21

5*3-2*7. = 15-14/21 = 1/21

21

Solve ( 3/14 -5/7)

lcm of 14,7 is 14

3/14*14 - 5/7*14

14

3 - 10 / 14 = -7/14 => -2/14

Now :-

( 1/21 ) + (-2/14)

lcm of 21,14 = 84

1/21 * 84 - 2/14 *84

84

4 - 12 / 84

-8/84 ( cancel in 4 table)

Answer = -2/21