Add 4/8 and 21/12
1st number: 4/8, 2nd number: 1 9/12
4/8 + 21/12 is 9/4.
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,
4/8 = 4 × 3/8 × 3 = 12/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
21/12 = 21 × 2/12 × 2 = 42/24 - Add the two like fractions:
12/24 + 42/24 = 12 + 42/24 = 54/24 - 54/24 simplified gives 9/4
- So, 4/8 + 21/12 = 9/4
In mixed form: 21/4
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