Add 21/8 and 9/12
1st number: 2 5/8, 2nd number: 9/12
21/8 + 9/12 is 27/8.
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,
21/8 = 21 × 3/8 × 3 = 63/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
9/12 = 9 × 2/12 × 2 = 18/24 - Add the two like fractions:
63/24 + 18/24 = 63 + 18/24 = 81/24 - 81/24 simplified gives 27/8
- So, 21/8 + 9/12 = 27/8
In mixed form: 33/8
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