Add 12/15 and 56/54
1st number: 12/15, 2nd number: 1 2/54
12/15 + 56/54 is 248/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
12/15 = 12 × 18/15 × 18 = 216/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
56/54 = 56 × 5/54 × 5 = 280/270 - Add the two like fractions:
216/270 + 280/270 = 216 + 280/270 = 496/270 - 496/270 simplified gives 248/135
- So, 12/15 + 56/54 = 248/135
In mixed form: 1113/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15+56/54 12/30+56/54 36/15+56/54 12/45+56/54 60/15+56/54 12/75+56/54 84/15+56/54