Add 81/28 and 20/60
1st number: 2 25/28, 2nd number: 20/60
81/28 + 20/60 is 271/84.
Steps for adding fractions
- 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,
20/60 = 20 × 7/60 × 7 = 140/420 - Add the two like fractions:
1215/420 + 140/420 = 1215 + 140/420 = 1355/420 - 1355/420 simplified gives 271/84
- So, 81/28 + 20/60 = 271/84
In mixed form: 319/84
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