Add 18/90 and 4/15
18/90 + 4/15 is 7/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
18/90 = 18 × 1/90 × 1 = 18/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
4/15 = 4 × 6/15 × 6 = 24/90 - Add the two like fractions:
18/90 + 24/90 = 18 + 24/90 = 42/90 - 42/90 simplified gives 7/15
- So, 18/90 + 4/15 = 7/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/90+4/15 18/90+8/15 18/90+4/30 54/90+4/15 18/90+12/15 18/90+4/45 18/90+20/15 18/90+4/75 18/90+28/15