Add 1/15 and 28/35
1/15 + 28/35 is 13/15.
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,
1/15 = 1 × 7/15 × 7 = 7/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
28/35 = 28 × 3/35 × 3 = 84/105 - Add the two like fractions:
7/105 + 84/105 = 7 + 84/105 = 91/105 - 91/105 simplified gives 13/15
- So, 1/15 + 28/35 = 13/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15+28/35 1/15+56/35 1/30+28/35 1/15+28/70 3/15+28/35 1/15+84/35 1/45+28/35 5/15+28/35 1/75+28/35 7/15+28/35