Add 15/81 and 12/63
15/81 + 12/63 is 71/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 63 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
15/81 = 15 × 7/81 × 7 = 105/567 - Likewise, for the 2nd fraction, since 63 × 9 = 567,
12/63 = 12 × 9/63 × 9 = 108/567 - Add the two like fractions:
105/567 + 108/567 = 105 + 108/567 = 213/567 - 213/567 simplified gives 71/189
- So, 15/81 + 12/63 = 71/189
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