Add 35/18 and 90/20
1st number: 1 17/18, 2nd number: 4 10/20
35/18 + 90/20 is 58/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
35/18 = 35 × 10/18 × 10 = 350/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
90/20 = 90 × 9/20 × 9 = 810/180 - Add the two like fractions:
350/180 + 810/180 = 350 + 810/180 = 1160/180 - 1160/180 simplified gives 58/9
- So, 35/18 + 90/20 = 58/9
In mixed form: 64/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+90/20 35/36+90/20 35/18+90/40 35/54+90/20 35/18+90/60 35/90+90/20