Add 15/90 and 1/3
15/90 + 1/3 is 1/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 3 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Likewise, for the 2nd fraction, since 3 × 30 = 90,
1/3 = 1 × 30/3 × 30 = 30/90 - Add the two like fractions:
15/90 + 30/90 = 15 + 30/90 = 45/90 - 45/90 simplified gives 1/2
- So, 15/90 + 1/3 = 1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90+1/3 15/90+2/3 15/90+1/6 45/90+1/3 15/90+1/9 75/90+1/3 15/90+5/3 15/90+1/15 15/90+7/3 15/90+1/21