Add 45/42 and 8/18
1st number: 1 3/42, 2nd number: 8/18
45/42 + 8/18 is 191/126.
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,
8/18 = 8 × 7/18 × 7 = 56/126 - Add the two like fractions:
135/126 + 56/126 = 135 + 56/126 = 191/126 - So, 45/42 + 8/18 = 191/126
In mixed form: 165/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+8/18 45/42+16/18 45/84+8/18 45/42+8/36 45/42+24/18 45/42+8/54 45/42+40/18 45/42+8/90 45/42+56/18