Add 90/72 and 35/36
1st number: 1 18/72, 2nd number: 35/36
90/72 + 35/36 is 20/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
35/36 = 35 × 2/36 × 2 = 70/72 - Add the two like fractions:
90/72 + 70/72 = 90 + 70/72 = 160/72 - 160/72 simplified gives 20/9
- So, 90/72 + 35/36 = 20/9
In mixed form: 22/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72+70/36 90/72+35/72