Add 35/20 and 3/28
1st number: 1 15/20, 2nd number: 3/28
35/20 + 3/28 is 13/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
35/20 = 35 × 7/20 × 7 = 245/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
3/28 = 3 × 5/28 × 5 = 15/140 - Add the two like fractions:
245/140 + 15/140 = 245 + 15/140 = 260/140 - 260/140 simplified gives 13/7
- So, 35/20 + 3/28 = 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: 70/20+3/28 35/20+6/28 35/40+3/28 35/20+3/56 35/20+9/28 35/60+3/28 35/20+3/84 35/20+15/28 35/20+21/28