Add 56/60 and 20/90
56/60 + 20/90 is 52/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
56/60 = 56 × 3/60 × 3 = 168/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
20/90 = 20 × 2/90 × 2 = 40/180 - Add the two like fractions:
168/180 + 40/180 = 168 + 40/180 = 208/180 - 208/180 simplified gives 52/45
- So, 56/60 + 20/90 = 52/45
In mixed form: 17/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/60+40/90 56/60+60/90