Add 64/28 and 21/5
1st number: 2 8/28, 2nd number: 4 1/5
64/28 + 21/5 is 227/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 5 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
64/28 = 64 × 5/28 × 5 = 320/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
21/5 = 21 × 28/5 × 28 = 588/140 - Add the two like fractions:
320/140 + 588/140 = 320 + 588/140 = 908/140 - 908/140 simplified gives 227/35
- So, 64/28 + 21/5 = 227/35
In mixed form: 617/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/28+42/5 64/56+21/5 64/28+21/10 64/28+63/5 64/84+21/5 64/28+21/15 64/28+21/25 64/28+21/35