Add 15/12 and 21/24
1st number: 1 3/12, 2nd number: 21/24
15/12 + 21/24 is 17/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
15/12 = 15 × 2/12 × 2 = 30/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24 - Add the two like fractions:
30/24 + 21/24 = 30 + 21/24 = 51/24 - 51/24 simplified gives 17/8
- So, 15/12 + 21/24 = 17/8
In mixed form: 21/8
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