Add 21/60 and 81/4
1st number: 21/60, 2nd number: 20 1/4
21/60 + 81/4 is 103/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
81/4 = 81 × 15/4 × 15 = 1215/60 - Add the two like fractions:
21/60 + 1215/60 = 21 + 1215/60 = 1236/60 - 1236/60 simplified gives 103/5
- So, 21/60 + 81/4 = 103/5
In mixed form: 203/5
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