Add 60/72 and 80/42, Solve 60/72 + 1 38/42 as a fraction

Add 60/72 and 80/42

1^st number: 60/72, 2^nd number: 1 38/42

60/72 + 80/42 is 115/42.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
60/72 = 60 × 7/72 × 7 = 420/504
Likewise, for the 2nd fraction, since 42 × 12 = 504,
80/42 = 80 × 12/42 × 12 = 960/504
Add the two like fractions:
420/504 + 960/504 = 420 + 960/504 = 1380/504
1380/504 simplified gives 115/42
So, 60/72 + 80/42 = 115/42
In mixed form: 231/42

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