Add 20/56 and 12/63
20/56 + 12/63 is 23/42.
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,
20/56 = 20 × 9/56 × 9 = 180/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
12/63 = 12 × 8/63 × 8 = 96/504 - Add the two like fractions:
180/504 + 96/504 = 180 + 96/504 = 276/504 - 276/504 simplified gives 23/42
- So, 20/56 + 12/63 = 23/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56+12/63 20/56+24/63 60/56+12/63 20/56+36/63 20/56+60/63 20/56+84/63