Add 20/56 and 42/20
1st number: 20/56, 2nd number: 2 2/20
20/56 + 42/20 is 86/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
20/56 = 20 × 5/56 × 5 = 100/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
42/20 = 42 × 14/20 × 14 = 588/280 - Add the two like fractions:
100/280 + 588/280 = 100 + 588/280 = 688/280 - 688/280 simplified gives 86/35
- So, 20/56 + 42/20 = 86/35
In mixed form: 216/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56+42/20 20/56+84/20 20/56+42/40 60/56+42/20 20/56+42/60