Add 12/81 and 15/7
1st number: 12/81, 2nd number: 2 1/7
12/81 + 15/7 is 433/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 7 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
12/81 = 12 × 7/81 × 7 = 84/567 - Likewise, for the 2nd fraction, since 7 × 81 = 567,
15/7 = 15 × 81/7 × 81 = 1215/567 - Add the two like fractions:
84/567 + 1215/567 = 84 + 1215/567 = 1299/567 - 1299/567 simplified gives 433/189
- So, 12/81 + 15/7 = 433/189
In mixed form: 255/189
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