Add 7/15 and 12/70
7/15 + 12/70 is 67/105.
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,
7/15 = 7 × 14/15 × 14 = 98/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
12/70 = 12 × 3/70 × 3 = 36/210 - Add the two like fractions:
98/210 + 36/210 = 98 + 36/210 = 134/210 - 134/210 simplified gives 67/105
- So, 7/15 + 12/70 = 67/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15+12/70 7/15+24/70 7/30+12/70 21/15+12/70 7/15+36/70 7/45+12/70 35/15+12/70 7/15+60/70 7/75+12/70 49/15+12/70 7/15+84/70