Add 21/28 and 20/14
1st number: 21/28, 2nd number: 1 6/14
21/28 + 20/14 is 61/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
21/28 = 21 × 1/28 × 1 = 21/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
20/14 = 20 × 2/14 × 2 = 40/28 - Add the two like fractions:
21/28 + 40/28 = 21 + 40/28 = 61/28 - So, 21/28 + 20/14 = 61/28
In mixed form: 25/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28+20/14 21/28+40/14 21/56+20/14 21/28+20/28 63/28+20/14 21/28+60/14 21/84+20/14 21/28+20/42 21/28+20/70 21/28+20/98