Add 81/18 and 98/21
1st number: 4 9/18, 2nd number: 4 14/21
81/18 + 98/21 is 55/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 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 21 × 6 = 126,
98/21 = 98 × 6/21 × 6 = 588/126 - Add the two like fractions:
567/126 + 588/126 = 567 + 588/126 = 1155/126 - 1155/126 simplified gives 55/6
- So, 81/18 + 98/21 = 55/6
In mixed form: 91/6
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