Add 15/28 and 25/35
15/28 + 25/35 is 5/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
15/28 = 15 × 5/28 × 5 = 75/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
25/35 = 25 × 4/35 × 4 = 100/140 - Add the two like fractions:
75/140 + 100/140 = 75 + 100/140 = 175/140 - 175/140 simplified gives 5/4
- So, 15/28 + 25/35 = 5/4
In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28+25/35 15/28+50/35 15/56+25/35 15/28+25/70 45/28+25/35 15/28+75/35 15/84+25/35 75/28+25/35