Add 35/90 and 63/20
1st number: 35/90, 2nd number: 3 3/20
35/90 + 63/20 is 637/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
35/90 = 35 × 2/90 × 2 = 70/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
63/20 = 63 × 9/20 × 9 = 567/180 - Add the two like fractions:
70/180 + 567/180 = 70 + 567/180 = 637/180 - So, 35/90 + 63/20 = 637/180
In mixed form: 397/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90+63/20 35/90+63/40 35/90+63/60