Add 20/45 and 28/75
20/45 + 28/75 is 184/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 75 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
20/45 = 20 × 5/45 × 5 = 100/225 - Likewise, for the 2nd fraction, since 75 × 3 = 225,
28/75 = 28 × 3/75 × 3 = 84/225 - Add the two like fractions:
100/225 + 84/225 = 100 + 84/225 = 184/225 - So, 20/45 + 28/75 = 184/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/45+28/75 20/45+56/75 20/90+28/75 60/45+28/75 20/45+84/75