Add 28/54 and 15/10
1st number: 28/54, 2nd number: 1 5/10
28/54 + 15/10 is 109/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
28/54 = 28 × 5/54 × 5 = 140/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
15/10 = 15 × 27/10 × 27 = 405/270 - Add the two like fractions:
140/270 + 405/270 = 140 + 405/270 = 545/270 - 545/270 simplified gives 109/54
- So, 28/54 + 15/10 = 109/54
In mixed form: 21/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/54+15/10 28/54+30/10 28/54+15/20 84/54+15/10 28/54+45/10 28/54+15/30 28/54+75/10 28/54+15/50 28/54+15/70