Add 21/60 and 15/10
1st number: 21/60, 2nd number: 1 5/10
21/60 + 15/10 is 37/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 10 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 10 × 6 = 60,
15/10 = 15 × 6/10 × 6 = 90/60 - Add the two like fractions:
21/60 + 90/60 = 21 + 90/60 = 111/60 - 111/60 simplified gives 37/20
- So, 21/60 + 15/10 = 37/20
In mixed form: 117/20
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