Add 20/45 and 5/50
20/45 + 5/50 is 49/90.
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,
20/45 = 20 × 10/45 × 10 = 200/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
5/50 = 5 × 9/50 × 9 = 45/450 - Add the two like fractions:
200/450 + 45/450 = 200 + 45/450 = 245/450 - 245/450 simplified gives 49/90
- So, 20/45 + 5/50 = 49/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/45+5/50 20/45+10/50 20/90+5/50 60/45+5/50 20/45+15/50 20/45+25/50 20/45+35/50