Add 35/18 and 54/42
1st number: 1 17/18, 2nd number: 1 12/42
35/18 + 54/42 is 407/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
35/18 = 35 × 7/18 × 7 = 245/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
54/42 = 54 × 3/42 × 3 = 162/126 - Add the two like fractions:
245/126 + 162/126 = 245 + 162/126 = 407/126 - So, 35/18 + 54/42 = 407/126
In mixed form: 329/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+54/42 35/36+54/42 35/18+54/84 35/54+54/42 35/90+54/42