Add 15/90 and 6/30
15/90 + 6/30 is 11/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 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 30 × 3 = 90,
6/30 = 6 × 3/30 × 3 = 18/90 - Add the two like fractions:
15/90 + 18/90 = 15 + 18/90 = 33/90 - 33/90 simplified gives 11/30
- So, 15/90 + 6/30 = 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90+6/30 15/90+12/30 15/90+6/60 45/90+6/30 15/90+18/30 15/90+6/90 75/90+6/30 15/90+42/30