Add 28/70 and 2/15
28/70 + 2/15 is 8/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
28/70 = 28 × 3/70 × 3 = 84/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
2/15 = 2 × 14/15 × 14 = 28/210 - Add the two like fractions:
84/210 + 28/210 = 84 + 28/210 = 112/210 - 112/210 simplified gives 8/15
- So, 28/70 + 2/15 = 8/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+2/15 28/70+4/15 28/70+2/30 84/70+2/15 28/70+6/15 28/70+2/45 28/70+10/15 28/70+2/75 28/70+14/15