Add 35/18 and 42/72
1st number: 1 17/18, 2nd number: 42/72
35/18 + 42/72 is 91/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
35/18 = 35 × 4/18 × 4 = 140/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Add the two like fractions:
140/72 + 42/72 = 140 + 42/72 = 182/72 - 182/72 simplified gives 91/36
- So, 35/18 + 42/72 = 91/36
In mixed form: 219/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+42/72 35/18+84/72 35/36+42/72 35/54+42/72 35/90+42/72