Add 9/20 and 25/28
9/20 + 25/28 is 47/35.
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,
9/20 = 9 × 7/20 × 7 = 63/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
25/28 = 25 × 5/28 × 5 = 125/140 - Add the two like fractions:
63/140 + 125/140 = 63 + 125/140 = 188/140 - 188/140 simplified gives 47/35
- So, 9/20 + 25/28 = 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: 18/20+25/28 9/20+50/28 9/40+25/28 9/20+25/56 27/20+25/28 9/20+75/28 9/60+25/28 9/20+25/84 45/20+25/28 63/20+25/28