Add 90/7 and 12/81
1st number: 12 6/7, 2nd number: 12/81
90/7 + 12/81 is 2458/189.
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,
90/7 = 90 × 81/7 × 81 = 7290/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
12/81 = 12 × 7/81 × 7 = 84/567 - Add the two like fractions:
7290/567 + 84/567 = 7290 + 84/567 = 7374/567 - 7374/567 simplified gives 2458/189
- So, 90/7 + 12/81 = 2458/189
In mixed form: 131/189
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