Add 15/90 and 25/50
15/90 + 25/50 is 2/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
15/90 = 15 × 5/90 × 5 = 75/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
25/50 = 25 × 9/50 × 9 = 225/450 - Add the two like fractions:
75/450 + 225/450 = 75 + 225/450 = 300/450 - 300/450 simplified gives 2/3
- So, 15/90 + 25/50 = 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90+25/50 45/90+25/50 15/90+75/50 75/90+25/50