Add 21/12 and 15/24
1st number: 1 9/12, 2nd number: 15/24
21/12 + 15/24 is 19/8.
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,
21/12 = 21 × 2/12 × 2 = 42/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
15/24 = 15 × 1/24 × 1 = 15/24 - Add the two like fractions:
42/24 + 15/24 = 42 + 15/24 = 57/24 - 57/24 simplified gives 19/8
- So, 21/12 + 15/24 = 19/8
In mixed form: 23/8
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