Add 81/63 and 60/72, Solve 1 18/63 + 60/72 as a fraction

Add 81/63 and 60/72

1^st number: 1 18/63, 2^nd number: 60/72

81/63 + 60/72 is 89/42.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 63 × 8 = 504,
81/63 = 81 × 8/63 × 8 = 648/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
60/72 = 60 × 7/72 × 7 = 420/504
Add the two like fractions:
648/504 + 420/504 = 648 + 420/504 = 1068/504
1068/504 simplified gives 89/42
So, 81/63 + 60/72 = 89/42
In mixed form: 25/42

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