Add 15/8 and 21/12
1st number: 1 7/8, 2nd number: 1 9/12
15/8 + 21/12 is 29/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
15/8 = 15 × 3/8 × 3 = 45/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
21/12 = 21 × 2/12 × 2 = 42/24 - Add the two like fractions:
45/24 + 42/24 = 45 + 42/24 = 87/24 - 87/24 simplified gives 29/8
- So, 15/8 + 21/12 = 29/8
In mixed form: 35/8
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