Add 49/42 and 20/18
1st number: 1 7/42, 2nd number: 1 2/18
49/42 + 20/18 is 41/18.
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,
49/42 = 49 × 3/42 × 3 = 147/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
20/18 = 20 × 7/18 × 7 = 140/126 - Add the two like fractions:
147/126 + 140/126 = 147 + 140/126 = 287/126 - 287/126 simplified gives 41/18
- So, 49/42 + 20/18 = 41/18
In mixed form: 25/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/42+20/18 49/42+40/18 49/84+20/18 49/42+20/36 49/42+60/18 49/42+20/54 49/42+20/90