Add 72/63 and 12/84
1st number: 1 9/63, 2nd number: 12/84
72/63 + 12/84 is 9/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 84 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 84 × 3 = 252,
12/84 = 12 × 3/84 × 3 = 36/252 - Add the two like fractions:
288/252 + 36/252 = 288 + 36/252 = 324/252 - 324/252 simplified gives 9/7
- So, 72/63 + 12/84 = 9/7
In mixed form: 12/7
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