Add 42/18 and 72/63
1st number: 2 6/18, 2nd number: 1 9/63
42/18 + 72/63 is 73/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
42/18 = 42 × 7/18 × 7 = 294/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
72/63 = 72 × 2/63 × 2 = 144/126 - Add the two like fractions:
294/126 + 144/126 = 294 + 144/126 = 438/126 - 438/126 simplified gives 73/21
- So, 42/18 + 72/63 = 73/21
In mixed form: 310/21
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