Add 21/8 and 15/24
1st number: 2 5/8, 2nd number: 15/24
21/8 + 15/24 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
15/24 = 15 × 1/24 × 1 = 15/24 - Add the two like fractions:
63/24 + 15/24 = 63 + 15/24 = 78/24 - 78/24 simplified gives 13/4
- So, 21/8 + 15/24 = 13/4
In mixed form: 31/4
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