Add 1/15 and 12/70
1/15 + 12/70 is 5/21.
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,
1/15 = 1 × 14/15 × 14 = 14/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
12/70 = 12 × 3/70 × 3 = 36/210 - Add the two like fractions:
14/210 + 36/210 = 14 + 36/210 = 50/210 - 50/210 simplified gives 5/21
- So, 1/15 + 12/70 = 5/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15+12/70 1/15+24/70 1/30+12/70 3/15+12/70 1/15+36/70 1/45+12/70 5/15+12/70 1/15+60/70 1/75+12/70 7/15+12/70 1/15+84/70