Subtract 30/14 from 45/18
1st number: 2 9/18, 2nd number: 2 2/14
45/18 - 30/14 is 5/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
45/18 = 45 × 7/18 × 7 = 315/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
30/14 = 30 × 9/14 × 9 = 270/126 - Subtract the two like fractions:
315/126 - 270/126 = 315 - 270/126 = 45/126 - After reducing the fraction, the answer is 5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18-30/14 45/18-60/14 45/36-30/14 45/18-30/28 45/18-90/14 45/54-30/14 45/18-30/42 45/90-30/14 45/18-30/70 45/18-30/98