Add 7/35 and 3/20
7/35 + 3/20 is 7/20.
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,
7/35 = 7 × 4/35 × 4 = 28/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
3/20 = 3 × 7/20 × 7 = 21/140 - Add the two like fractions:
28/140 + 21/140 = 28 + 21/140 = 49/140 - 49/140 simplified gives 7/20
- So, 7/35 + 3/20 = 7/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/35+3/20 7/35+6/20 7/70+3/20 7/35+3/40 21/35+3/20 7/35+9/20 7/35+3/60 7/35+15/20 49/35+3/20 7/35+21/20