Add 15/12 and 84/4
1st number: 1 3/12, 2nd number: 21 0/4
15/12 + 84/4 is 89/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
15/12 = 15 × 1/12 × 1 = 15/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
84/4 = 84 × 3/4 × 3 = 252/12 - Add the two like fractions:
15/12 + 252/12 = 15 + 252/12 = 267/12 - 267/12 simplified gives 89/4
- So, 15/12 + 84/4 = 89/4
In mixed form: 221/4
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