Add 5/7 and 84/72, Solve 5/7 + 1 12/72 as a fraction

Add 5/7 and 84/72

1^st number: 5/7, 2^nd number: 1 12/72

5/7 + 84/72 is 79/42.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 7 × 72 = 504,
5/7 = 5 × 72/7 × 72 = 360/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
84/72 = 84 × 7/72 × 7 = 588/504
Add the two like fractions:
360/504 + 588/504 = 360 + 588/504 = 948/504
948/504 simplified gives 79/42
So, 5/7 + 84/72 = 79/42
In mixed form: 137/42

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