Add 49/18 and 72/42
1st number: 2 13/18, 2nd number: 1 30/42
49/18 + 72/42 is 559/126.
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,
49/18 = 49 × 7/18 × 7 = 343/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
72/42 = 72 × 3/42 × 3 = 216/126 - Add the two like fractions:
343/126 + 216/126 = 343 + 216/126 = 559/126 - So, 49/18 + 72/42 = 559/126
In mixed form: 455/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/18+72/42 49/36+72/42 49/18+72/84 49/54+72/42 49/90+72/42