Add 81/7 and 42/81
1st number: 11 4/7, 2nd number: 42/81
81/7 + 42/81 is 2285/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
81/7 = 81 × 81/7 × 81 = 6561/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
42/81 = 42 × 7/81 × 7 = 294/567 - Add the two like fractions:
6561/567 + 294/567 = 6561 + 294/567 = 6855/567 - 6855/567 simplified gives 2285/189
- So, 81/7 + 42/81 = 2285/189
In mixed form: 1217/189
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