Add 90/9 and 35/20
1st number: 10 0/9, 2nd number: 1 15/20
90/9 + 35/20 is 47/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
90/9 = 90 × 20/9 × 20 = 1800/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
35/20 = 35 × 9/20 × 9 = 315/180 - Add the two like fractions:
1800/180 + 315/180 = 1800 + 315/180 = 2115/180 - 2115/180 simplified gives 47/4
- So, 90/9 + 35/20 = 47/4
In mixed form: 113/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9+70/20 90/18+35/20 90/9+35/40 90/27+35/20 90/9+35/60 90/45+35/20 90/63+35/20