Add 81/21 and 10/54
1st number: 3 18/21, 2nd number: 10/54
81/21 + 10/54 is 764/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 21 × 18 = 378,
81/21 = 81 × 18/21 × 18 = 1458/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
10/54 = 10 × 7/54 × 7 = 70/378 - Add the two like fractions:
1458/378 + 70/378 = 1458 + 70/378 = 1528/378 - 1528/378 simplified gives 764/189
- So, 81/21 + 10/54 = 764/189
In mixed form: 48/189
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