Add 9/28 and 25/20
1st number: 9/28, 2nd number: 1 5/20
9/28 + 25/20 is 11/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
9/28 = 9 × 5/28 × 5 = 45/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
25/20 = 25 × 7/20 × 7 = 175/140 - Add the two like fractions:
45/140 + 175/140 = 45 + 175/140 = 220/140 - 220/140 simplified gives 11/7
- So, 9/28 + 25/20 = 11/7
In mixed form: 14/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/28+25/20 9/28+50/20 9/56+25/20 9/28+25/40 27/28+25/20 9/28+75/20 9/84+25/20 9/28+25/60 45/28+25/20 63/28+25/20