Add 12/9 and 14/70
1st number: 1 3/9, 2nd number: 14/70
12/9 + 14/70 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
12/9 = 12 × 70/9 × 70 = 840/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
14/70 = 14 × 9/70 × 9 = 126/630 - Add the two like fractions:
840/630 + 126/630 = 840 + 126/630 = 966/630 - 966/630 simplified gives 23/15
- So, 12/9 + 14/70 = 23/15
In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9+14/70 12/9+28/70 12/18+14/70 36/9+14/70 12/9+42/70 12/27+14/70 60/9+14/70 12/45+14/70 84/9+14/70 12/9+98/70 12/63+14/70