Question

subtract the sum of(-3/5)and (3/14) from the sum of (11/4) and (15/42

Answer 1

((11/4)+(15/42))-((-3/5)+(3/14))
First take the LCM of 4 and 42 = 84 is the LCM
Evaluate the sum
=231+30/84= 261/84
Then take the LCM of 5 and 14 = 70 is the LCM.
Evaluate the sum
-42+15/70= 27/70
Take LCM of the both denominator of evaluated numbers . LCM of 84 and 70 is 420.
Evaluate both numbers .
1305-162/420 =1143/420 and change into mixed fraction = 2 303/420 .