Add 9/4 and 56/90
1st number: 2 1/4, 2nd number: 56/90
9/4 + 56/90 is 517/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
9/4 = 9 × 45/4 × 45 = 405/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
56/90 = 56 × 2/90 × 2 = 112/180 - Add the two like fractions:
405/180 + 112/180 = 405 + 112/180 = 517/180 - So, 9/4 + 56/90 = 517/180
In mixed form: 2157/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/4+56/90 9/8+56/90 27/4+56/90 9/12+56/90 45/4+56/90 9/20+56/90 63/4+56/90 9/28+56/90