Add 35/18 and 21/4
1st number: 1 17/18, 2nd number: 5 1/4
35/18 + 21/4 is 259/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
35/18 = 35 × 2/18 × 2 = 70/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
21/4 = 21 × 9/4 × 9 = 189/36 - Add the two like fractions:
70/36 + 189/36 = 70 + 189/36 = 259/36 - So, 35/18 + 21/4 = 259/36
In mixed form: 77/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+21/4 35/18+42/4 35/36+21/4 35/18+21/8 35/18+63/4 35/54+21/4 35/18+21/12 35/90+21/4 35/18+21/20 35/18+21/28