Add 20/49 and 42/63
20/49 + 42/63 is 158/147.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 63 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
20/49 = 20 × 9/49 × 9 = 180/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
42/63 = 42 × 7/63 × 7 = 294/441 - Add the two like fractions:
180/441 + 294/441 = 180 + 294/441 = 474/441 - 474/441 simplified gives 158/147
- So, 20/49 + 42/63 = 158/147
In mixed form: 111/147
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