Add 15/40 and 56/30
1st number: 15/40, 2nd number: 1 26/30
15/40 + 56/30 is 269/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
56/30 = 56 × 4/30 × 4 = 224/120 - Add the two like fractions:
45/120 + 224/120 = 45 + 224/120 = 269/120 - So, 15/40 + 56/30 = 269/120
In mixed form: 229/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/40+56/30 15/80+56/30 15/40+56/60 45/40+56/30 15/40+56/90 75/40+56/30