Add 56/54 and 15/90
1st number: 1 2/54, 2nd number: 15/90
56/54 + 15/90 is 65/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
56/54 = 56 × 5/54 × 5 = 280/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
15/90 = 15 × 3/90 × 3 = 45/270 - Add the two like fractions:
280/270 + 45/270 = 280 + 45/270 = 325/270 - 325/270 simplified gives 65/54
- So, 56/54 + 15/90 = 65/54
In mixed form: 111/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/54+30/90 56/54+45/90 56/54+75/90