Add 81/7 and 20/54
1st number: 11 4/7, 2nd number: 20/54
81/7 + 20/54 is 2257/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
81/7 = 81 × 54/7 × 54 = 4374/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
20/54 = 20 × 7/54 × 7 = 140/378 - Add the two like fractions:
4374/378 + 140/378 = 4374 + 140/378 = 4514/378 - 4514/378 simplified gives 2257/189
- So, 81/7 + 20/54 = 2257/189
In mixed form: 11178/189
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