Add 21/14 and 20/56
1st number: 1 7/14, 2nd number: 20/56
21/14 + 20/56 is 13/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 14 × 4 = 56,
21/14 = 21 × 4/14 × 4 = 84/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
20/56 = 20 × 1/56 × 1 = 20/56 - Add the two like fractions:
84/56 + 20/56 = 84 + 20/56 = 104/56 - 104/56 simplified gives 13/7
- So, 21/14 + 20/56 = 13/7
In mixed form: 16/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14+20/56 21/14+40/56 21/28+20/56 63/14+20/56 21/14+60/56 21/42+20/56 21/70+20/56 21/98+20/56