Add 72/84 and 56/72, Solve 72/84 + 56/72 as a fraction

Add 72/84 and 56/72

72/84 + 56/72 is 103/63.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 84 × 6 = 504,
72/84 = 72 × 6/84 × 6 = 432/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
56/72 = 56 × 7/72 × 7 = 392/504
Add the two like fractions:
432/504 + 392/504 = 432 + 392/504 = 824/504
824/504 simplified gives 103/63
So, 72/84 + 56/72 = 103/63
In mixed form: 140/63

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