Add 75/18 and 90/9
1st number: 4 3/18, 2nd number: 10 0/9
75/18 + 90/9 is 85/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
75/18 = 75 × 1/18 × 1 = 75/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
90/9 = 90 × 2/9 × 2 = 180/18 - Add the two like fractions:
75/18 + 180/18 = 75 + 180/18 = 255/18 - 255/18 simplified gives 85/6
- So, 75/18 + 90/9 = 85/6
In mixed form: 141/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/36+90/9 75/18+90/18 75/54+90/9 75/18+90/27 75/90+90/9 75/18+90/45 75/18+90/63