Add 20/50 and 6/90
20/50 + 6/90 is 7/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
20/50 = 20 × 9/50 × 9 = 180/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
6/90 = 6 × 5/90 × 5 = 30/450 - Add the two like fractions:
180/450 + 30/450 = 180 + 30/450 = 210/450 - 210/450 simplified gives 7/15
- So, 20/50 + 6/90 = 7/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/50+6/90 20/50+12/90 60/50+6/90 20/50+18/90 20/50+30/90 20/50+42/90