Add 21/60 and 45/30
1st number: 21/60, 2nd number: 1 15/30
21/60 + 45/30 is 37/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 30 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 30 × 2 = 60,
45/30 = 45 × 2/30 × 2 = 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 + 45/30 = 37/20
In mixed form: 117/20
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