Add 56/45 and 18/90
1st number: 1 11/45, 2nd number: 18/90
56/45 + 18/90 is 13/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
56/45 = 56 × 2/45 × 2 = 112/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
18/90 = 18 × 1/90 × 1 = 18/90 - Add the two like fractions:
112/90 + 18/90 = 112 + 18/90 = 130/90 - 130/90 simplified gives 13/9
- So, 56/45 + 18/90 = 13/9
In mixed form: 14/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+36/90 56/90+18/90 56/45+54/90