Add 8/35 and 21/20
1st number: 8/35, 2nd number: 1 1/20
8/35 + 21/20 is 179/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
8/35 = 8 × 4/35 × 4 = 32/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
21/20 = 21 × 7/20 × 7 = 147/140 - Add the two like fractions:
32/140 + 147/140 = 32 + 147/140 = 179/140 - So, 8/35 + 21/20 = 179/140
In mixed form: 139/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/35+21/20 8/35+42/20 8/70+21/20 8/35+21/40 24/35+21/20 8/35+63/20 8/35+21/60 40/35+21/20 56/35+21/20