Add 56/90 and 9/20
56/90 + 9/20 is 193/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
56/90 = 56 × 2/90 × 2 = 112/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
9/20 = 9 × 9/20 × 9 = 81/180 - Add the two like fractions:
112/180 + 81/180 = 112 + 81/180 = 193/180 - So, 56/90 + 9/20 = 193/180
In mixed form: 113/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90+18/20 56/90+9/40 56/90+27/20 56/90+9/60 56/90+45/20 56/90+63/20