Add 45/14 and 20/18
1st number: 3 3/14, 2nd number: 1 2/18
45/14 + 20/18 is 545/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
45/14 = 45 × 9/14 × 9 = 405/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
20/18 = 20 × 7/18 × 7 = 140/126 - Add the two like fractions:
405/126 + 140/126 = 405 + 140/126 = 545/126 - So, 45/14 + 20/18 = 545/126
In mixed form: 441/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14+20/18 45/14+40/18 45/28+20/18 45/14+20/36 45/14+60/18 45/42+20/18 45/14+20/54 45/70+20/18 45/14+20/90 45/98+20/18