Add 81/28 and 4/60, Solve 2 25/28 + 4/60 as a fraction

Add 81/28 and 4/60

1^st number: 2 25/28, 2^nd number: 4/60

81/28 + 4/60 is 1243/420.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 28 × 15 = 420,
81/28 = 81 × 15/28 × 15 = 1215/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
4/60 = 4 × 7/60 × 7 = 28/420
Add the two like fractions:
1215/420 + 28/420 = 1215 + 28/420 = 1243/420
So, 81/28 + 4/60 = 1243/420
In mixed form: 2403/420

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