Add 72/63 and 42/84
1st number: 1 9/63, 2nd number: 42/84
72/63 + 42/84 is 23/14.
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,
42/84 = 42 × 3/84 × 3 = 126/252 - Add the two like fractions:
288/252 + 126/252 = 288 + 126/252 = 414/252 - 414/252 simplified gives 23/14
- So, 72/63 + 42/84 = 23/14
In mixed form: 19/14
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