Add 72/63 and 28/12
1st number: 1 9/63, 2nd number: 2 4/12
72/63 + 28/12 is 73/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
28/12 = 28 × 21/12 × 21 = 588/252 - Add the two like fractions:
288/252 + 588/252 = 288 + 588/252 = 876/252 - 876/252 simplified gives 73/21
- So, 72/63 + 28/12 = 73/21
In mixed form: 310/21
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