Add 7/8 and 3/20
7/8 + 3/20 is 41/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
7/8 = 7 × 5/8 × 5 = 35/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
3/20 = 3 × 2/20 × 2 = 6/40 - Add the two like fractions:
35/40 + 6/40 = 35 + 6/40 = 41/40 - So, 7/8 + 3/20 = 41/40
In mixed form: 11/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8+3/20 7/8+6/20 7/16+3/20 7/8+3/40 21/8+3/20 7/8+9/20 7/24+3/20 7/8+3/60 35/8+3/20 7/8+15/20 7/40+3/20 49/8+3/20 7/8+21/20 7/56+3/20