Add 20/75 and 56/45
1st number: 20/75, 2nd number: 1 11/45
20/75 + 56/45 is 68/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
20/75 = 20 × 3/75 × 3 = 60/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
56/45 = 56 × 5/45 × 5 = 280/225 - Add the two like fractions:
60/225 + 280/225 = 60 + 280/225 = 340/225 - 340/225 simplified gives 68/45
- So, 20/75 + 56/45 = 68/45
In mixed form: 123/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/75+56/45 20/75+56/90 60/75+56/45