Add 18/81 and 20/63
18/81 + 20/63 is 34/63.
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,
18/81 = 18 × 7/81 × 7 = 126/567 - Likewise, for the 2nd fraction, since 63 × 9 = 567,
20/63 = 20 × 9/63 × 9 = 180/567 - Add the two like fractions:
126/567 + 180/567 = 126 + 180/567 = 306/567 - 306/567 simplified gives 34/63
- So, 18/81 + 20/63 = 34/63
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