Subtract 80/7 from 50/18
1st number: 2 14/18, 2nd number: 11 3/7
50/18 - 80/7 is -545/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
50/18 = 50 × 7/18 × 7 = 350/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
80/7 = 80 × 18/7 × 18 = 1440/126 - Subtract the two like fractions:
350/126 - 1440/126 = 350 - 1440/126 = -1090/126 - After reducing the fraction, the answer is -545/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/36-80/7 50/18-80/14 50/54-80/7 50/18-80/21 50/90-80/7 50/18-80/35 50/18-80/49