Add 9/3 and 15/40
1st number: 3 0/3, 2nd number: 15/40
9/3 + 15/40 is 27/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
9/3 = 9 × 40/3 × 40 = 360/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Add the two like fractions:
360/120 + 45/120 = 360 + 45/120 = 405/120 - 405/120 simplified gives 27/8
- So, 9/3 + 15/40 = 27/8
In mixed form: 33/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/3+15/40 9/3+30/40 9/6+15/40 9/3+15/80 27/3+15/40 9/3+45/40 45/3+15/40 9/3+75/40 9/15+15/40 63/3+15/40 9/21+15/40