Add 12/14 and 21/35
12/14 + 21/35 is 51/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
12/14 = 12 × 5/14 × 5 = 60/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Add the two like fractions:
60/70 + 42/70 = 60 + 42/70 = 102/70 - 102/70 simplified gives 51/35
- So, 12/14 + 21/35 = 51/35
In mixed form: 116/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14+21/35 12/14+42/35 12/28+21/35 12/14+21/70 36/14+21/35 12/14+63/35 12/42+21/35 60/14+21/35 12/70+21/35 84/14+21/35 12/98+21/35