Add 9/28 and 35/15
1st number: 9/28, 2nd number: 2 5/15
9/28 + 35/15 is 223/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
9/28 = 9 × 15/28 × 15 = 135/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
35/15 = 35 × 28/15 × 28 = 980/420 - Add the two like fractions:
135/420 + 980/420 = 135 + 980/420 = 1115/420 - 1115/420 simplified gives 223/84
- So, 9/28 + 35/15 = 223/84
In mixed form: 255/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/28+35/15 9/28+70/15 9/56+35/15 9/28+35/30 27/28+35/15 9/84+35/15 9/28+35/45 45/28+35/15 9/28+35/75 63/28+35/15