Add 90/20 and 35/9
1st number: 4 10/20, 2nd number: 3 8/9
90/20 + 35/9 is 151/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
90/20 = 90 × 9/20 × 9 = 810/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
35/9 = 35 × 20/9 × 20 = 700/180 - Add the two like fractions:
810/180 + 700/180 = 810 + 700/180 = 1510/180 - 1510/180 simplified gives 151/18
- So, 90/20 + 35/9 = 151/18
In mixed form: 87/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+70/9 90/40+35/9 90/20+35/18 90/60+35/9 90/20+35/27 90/20+35/45 90/20+35/63