Subtract 45/18 from 50/7
1st number: 7 1/7, 2nd number: 2 9/18
50/7 - 45/18 is 65/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
50/7 = 50 × 18/7 × 18 = 900/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
45/18 = 45 × 7/18 × 7 = 315/126 - Subtract the two like fractions:
900/126 - 315/126 = 900 - 315/126 = 585/126 - After reducing the fraction, the answer is 65/14
- In mixed form: 49/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7-90/18 50/14-45/18 50/7-45/36 50/21-45/18 50/7-45/54 50/35-45/18 50/7-45/90 50/49-45/18