Add 21/14 and 7/81
1st number: 1 7/14, 2nd number: 7/81
21/14 + 7/81 is 257/162.
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,
7/81 = 7 × 14/81 × 14 = 98/1134 - Add the two like fractions:
1701/1134 + 98/1134 = 1701 + 98/1134 = 1799/1134 - 1799/1134 simplified gives 257/162
- So, 21/14 + 7/81 = 257/162
In mixed form: 195/162
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