Add 3/90 and 18/9
1st number: 3/90, 2nd number: 2 0/9
3/90 + 18/9 is 61/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
3/90 = 3 × 1/90 × 1 = 3/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
18/9 = 18 × 10/9 × 10 = 180/90 - Add the two like fractions:
3/90 + 180/90 = 3 + 180/90 = 183/90 - 183/90 simplified gives 61/30
- So, 3/90 + 18/9 = 61/30
In mixed form: 21/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/90+18/9 3/90+36/9 9/90+18/9 3/90+54/9 3/90+18/27 15/90+18/9 3/90+90/9 3/90+18/45 21/90+18/9 3/90+18/63