Add 12/14 and 5/15
12/14 + 5/15 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
12/14 = 12 × 15/14 × 15 = 180/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
5/15 = 5 × 14/15 × 14 = 70/210 - Add the two like fractions:
180/210 + 70/210 = 180 + 70/210 = 250/210 - 250/210 simplified gives 25/21
- So, 12/14 + 5/15 = 25/21
In mixed form: 14/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14+5/15 12/14+10/15 12/28+5/15 12/14+5/30 36/14+5/15 12/42+5/15 12/14+5/45 60/14+5/15 12/14+25/15 12/70+5/15 12/14+5/75 84/14+5/15 12/14+35/15 12/98+5/15