Add 6/15 and 9/40
6/15 + 9/40 is 5/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
6/15 = 6 × 8/15 × 8 = 48/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
9/40 = 9 × 3/40 × 3 = 27/120 - Add the two like fractions:
48/120 + 27/120 = 48 + 27/120 = 75/120 - 75/120 simplified gives 5/8
- So, 6/15 + 9/40 = 5/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15+9/40 6/15+18/40 6/30+9/40 6/15+9/80 18/15+9/40 6/15+27/40 6/45+9/40 30/15+9/40 6/15+45/40 6/75+9/40 42/15+9/40 6/15+63/40