Add 12/35 and 21/10
1st number: 12/35, 2nd number: 2 1/10
12/35 + 21/10 is 171/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
12/35 = 12 × 2/35 × 2 = 24/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
21/10 = 21 × 7/10 × 7 = 147/70 - Add the two like fractions:
24/70 + 147/70 = 24 + 147/70 = 171/70 - So, 12/35 + 21/10 = 171/70
In mixed form: 231/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/35+21/10 12/35+42/10 12/70+21/10 12/35+21/20 36/35+21/10 12/35+63/10 12/35+21/30 60/35+21/10 12/35+21/50 84/35+21/10 12/35+21/70