Add 30/81 and 20/63
30/81 + 20/63 is 130/189.
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,
30/81 = 30 × 7/81 × 7 = 210/567 - Likewise, for the 2nd fraction, since 63 × 9 = 567,
20/63 = 20 × 9/63 × 9 = 180/567 - Add the two like fractions:
210/567 + 180/567 = 210 + 180/567 = 390/567 - 390/567 simplified gives 130/189
- So, 30/81 + 20/63 = 130/189
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