Add 81/18 and 90/63
1st number: 4 9/18, 2nd number: 1 27/63
81/18 + 90/63 is 83/14.
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,
81/18 = 81 × 7/18 × 7 = 567/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
90/63 = 90 × 2/63 × 2 = 180/126 - Add the two like fractions:
567/126 + 180/126 = 567 + 180/126 = 747/126 - 747/126 simplified gives 83/14
- So, 81/18 + 90/63 = 83/14
In mixed form: 513/14
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