Add 20/56 and 42/9
1st number: 20/56, 2nd number: 4 6/9
20/56 + 42/9 is 211/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 9 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 9 × 56 = 504,
42/9 = 42 × 56/9 × 56 = 2352/504 - Add the two like fractions:
180/504 + 2352/504 = 180 + 2352/504 = 2532/504 - 2532/504 simplified gives 211/42
- So, 20/56 + 42/9 = 211/42
In mixed form: 51/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56+42/9 20/56+84/9 20/56+42/18 60/56+42/9 20/56+42/27 20/56+42/45 20/56+42/63