Add 21/12 and 72/48
1st number: 1 9/12, 2nd number: 1 24/48
21/12 + 72/48 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 48 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
21/12 = 21 × 4/12 × 4 = 84/48 - Likewise, for the 2nd fraction, since 48 × 1 = 48,
72/48 = 72 × 1/48 × 1 = 72/48 - Add the two like fractions:
84/48 + 72/48 = 84 + 72/48 = 156/48 - 156/48 simplified gives 13/4
- So, 21/12 + 72/48 = 13/4
In mixed form: 31/4
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