Add 35/36 and 21/20
1st number: 35/36, 2nd number: 1 1/20
35/36 + 21/20 is 91/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
35/36 = 35 × 5/36 × 5 = 175/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
21/20 = 21 × 9/20 × 9 = 189/180 - Add the two like fractions:
175/180 + 189/180 = 175 + 189/180 = 364/180 - 364/180 simplified gives 91/45
- So, 35/36 + 21/20 = 91/45
In mixed form: 21/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/36+21/20 35/36+42/20 35/72+21/20 35/36+21/40 35/36+63/20 35/36+21/60