Add 42/56 and 20/63
42/56 + 20/63 is 269/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
42/56 = 42 × 9/56 × 9 = 378/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
20/63 = 20 × 8/63 × 8 = 160/504 - Add the two like fractions:
378/504 + 160/504 = 378 + 160/504 = 538/504 - 538/504 simplified gives 269/252
- So, 42/56 + 20/63 = 269/252
In mixed form: 117/252
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