Add 6/90 and 36/18
1st number: 6/90, 2nd number: 2 0/18
6/90 + 36/18 is 31/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
6/90 = 6 × 1/90 × 1 = 6/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
36/18 = 36 × 5/18 × 5 = 180/90 - Add the two like fractions:
6/90 + 180/90 = 6 + 180/90 = 186/90 - 186/90 simplified gives 31/15
- So, 6/90 + 36/18 = 31/15
In mixed form: 21/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/90+36/18 6/90+72/18 18/90+36/18 6/90+36/54 30/90+36/18 6/90+36/90 42/90+36/18