Add 28/45 and 20/50
28/45 + 20/50 is 46/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 45 × 10 = 450,
28/45 = 28 × 10/45 × 10 = 280/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
20/50 = 20 × 9/50 × 9 = 180/450 - Add the two like fractions:
280/450 + 180/450 = 280 + 180/450 = 460/450 - 460/450 simplified gives 46/45
- So, 28/45 + 20/50 = 46/45
In mixed form: 11/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+20/50 28/45+40/50 28/90+20/50 84/45+20/50 28/45+60/50