Add 7/8 and 4/20
7/8 + 4/20 is 43/40.
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,
4/20 = 4 × 2/20 × 2 = 8/40 - Add the two like fractions:
35/40 + 8/40 = 35 + 8/40 = 43/40 - So, 7/8 + 4/20 = 43/40
In mixed form: 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8+4/20 7/8+8/20 7/16+4/20 7/8+4/40 21/8+4/20 7/8+12/20 7/24+4/20 7/8+4/60 35/8+4/20 7/40+4/20 49/8+4/20 7/8+28/20 7/56+4/20