Add 20/63 and 42/49
20/63 + 42/49 is 74/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 63 × 7 = 441,
20/63 = 20 × 7/63 × 7 = 140/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
42/49 = 42 × 9/49 × 9 = 378/441 - Add the two like fractions:
140/441 + 378/441 = 140 + 378/441 = 518/441 - 518/441 simplified gives 74/63
- So, 20/63 + 42/49 = 74/63
In mixed form: 111/63
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