Add 45/42 and 28/18
1st number: 1 3/42, 2nd number: 1 10/18
45/42 + 28/18 is 331/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
45/42 = 45 × 3/42 × 3 = 135/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
28/18 = 28 × 7/18 × 7 = 196/126 - Add the two like fractions:
135/126 + 196/126 = 135 + 196/126 = 331/126 - So, 45/42 + 28/18 = 331/126
In mixed form: 279/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+28/18 45/42+56/18 45/84+28/18 45/42+28/36 45/42+84/18 45/42+28/54 45/42+28/90