Add 90/30 and 30/9
1st number: 3 0/30, 2nd number: 3 3/9
90/30 + 30/9 is 19/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
90/30 = 90 × 3/30 × 3 = 270/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
30/9 = 30 × 10/9 × 10 = 300/90 - Add the two like fractions:
270/90 + 300/90 = 270 + 300/90 = 570/90 - 570/90 simplified gives 19/3
- So, 90/30 + 30/9 = 19/3
In mixed form: 61/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+60/9 90/60+30/9 90/30+30/18 90/30+90/9 90/30+30/27 90/30+30/45 90/30+30/63