Add 42/63 and 36/81
42/63 + 36/81 is 10/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 63 × 9 = 567,
42/63 = 42 × 9/63 × 9 = 378/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
36/81 = 36 × 7/81 × 7 = 252/567 - Add the two like fractions:
378/567 + 252/567 = 378 + 252/567 = 630/567 - 630/567 simplified gives 10/9
- So, 42/63 + 36/81 = 10/9
In mixed form: 11/9
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