Add 1/8 and 9/40
1/8 + 9/40 is 7/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
1/8 = 1 × 5/8 × 5 = 5/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
9/40 = 9 × 1/40 × 1 = 9/40 - Add the two like fractions:
5/40 + 9/40 = 5 + 9/40 = 14/40 - 14/40 simplified gives 7/20
- So, 1/8 + 9/40 = 7/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/8+9/40 1/8+18/40 1/16+9/40 1/8+9/80 3/8+9/40 1/8+27/40 1/24+9/40 5/8+9/40 1/8+45/40 1/40+9/40 7/8+9/40 1/8+63/40 1/56+9/40