Add 9/15 and 28/35
9/15 + 28/35 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
9/15 = 9 × 7/15 × 7 = 63/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
28/35 = 28 × 3/35 × 3 = 84/105 - Add the two like fractions:
63/105 + 84/105 = 63 + 84/105 = 147/105 - 147/105 simplified gives 7/5
- So, 9/15 + 28/35 = 7/5
In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+28/35 9/15+56/35 9/30+28/35 9/15+28/70 27/15+28/35 9/15+84/35 9/45+28/35 45/15+28/35 9/75+28/35 63/15+28/35