Add 21/14 and 42/81
1st number: 1 7/14, 2nd number: 42/81
21/14 + 42/81 is 109/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 14 × 81 = 1134,
21/14 = 21 × 81/14 × 81 = 1701/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
42/81 = 42 × 14/81 × 14 = 588/1134 - Add the two like fractions:
1701/1134 + 588/1134 = 1701 + 588/1134 = 2289/1134 - 2289/1134 simplified gives 109/54
- So, 21/14 + 42/81 = 109/54
In mixed form: 21/54
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