Add 12/15 and 56/45
1st number: 12/15, 2nd number: 1 11/45
12/15 + 56/45 is 92/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
12/15 = 12 × 3/15 × 3 = 36/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
56/45 = 56 × 1/45 × 1 = 56/45 - Add the two like fractions:
36/45 + 56/45 = 36 + 56/45 = 92/45 - So, 12/15 + 56/45 = 92/45
In mixed form: 22/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15+56/45 12/30+56/45 12/15+56/90 36/15+56/45 12/45+56/45 60/15+56/45 12/75+56/45 84/15+56/45