Add 28/15 and 3/70
1st number: 1 13/15, 2nd number: 3/70
28/15 + 3/70 is 401/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
28/15 = 28 × 14/15 × 14 = 392/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
3/70 = 3 × 3/70 × 3 = 9/210 - Add the two like fractions:
392/210 + 9/210 = 392 + 9/210 = 401/210 - So, 28/15 + 3/70 = 401/210
In mixed form: 1191/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+3/70 28/15+6/70 28/30+3/70 84/15+3/70 28/15+9/70 28/45+3/70 28/15+15/70 28/75+3/70 28/15+21/70