Add 4/15 and 7/90
4/15 + 7/90 is 31/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
4/15 = 4 × 6/15 × 6 = 24/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Add the two like fractions:
24/90 + 7/90 = 24 + 7/90 = 31/90 - So, 4/15 + 7/90 = 31/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15+7/90 4/15+14/90 4/30+7/90 12/15+7/90 4/15+21/90 4/45+7/90 20/15+7/90 4/15+35/90 4/75+7/90 28/15+7/90 4/15+49/90