Add 56/40 and 7/15
1st number: 1 16/40, 2nd number: 7/15
56/40 + 7/15 is 28/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
56/40 = 56 × 3/40 × 3 = 168/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
7/15 = 7 × 8/15 × 8 = 56/120 - Add the two like fractions:
168/120 + 56/120 = 168 + 56/120 = 224/120 - 224/120 simplified gives 28/15
- So, 56/40 + 7/15 = 28/15
In mixed form: 113/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+14/15 56/80+7/15 56/40+7/30 56/40+21/15 56/40+7/45 56/40+35/15 56/40+7/75 56/40+49/15