Add 56/40 and 28/12
1st number: 1 16/40, 2nd number: 2 4/12
56/40 + 28/12 is 56/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 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 12 × 10 = 120,
28/12 = 28 × 10/12 × 10 = 280/120 - Add the two like fractions:
168/120 + 280/120 = 168 + 280/120 = 448/120 - 448/120 simplified gives 56/15
- So, 56/40 + 28/12 = 56/15
In mixed form: 311/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+56/12 56/80+28/12 56/40+28/24 56/40+84/12 56/40+28/36 56/40+28/60 56/40+28/84