Add 25/28 and 9/20
25/28 + 9/20 is 47/35.
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,
25/28 = 25 × 5/28 × 5 = 125/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
9/20 = 9 × 7/20 × 7 = 63/140 - Add the two like fractions:
125/140 + 63/140 = 125 + 63/140 = 188/140 - 188/140 simplified gives 47/35
- So, 25/28 + 9/20 = 47/35
In mixed form: 112/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+9/20 25/28+18/20 25/56+9/20 25/28+9/40 75/28+9/20 25/28+27/20 25/84+9/20 25/28+9/60 25/28+45/20 25/28+63/20