Subtract 8/7 from 75/18
1st number: 4 3/18, 2nd number: 1 1/7
75/18 - 8/7 is 127/42.
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,
75/18 = 75 × 7/18 × 7 = 525/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
8/7 = 8 × 18/7 × 18 = 144/126 - Subtract the two like fractions:
525/126 - 144/126 = 525 - 144/126 = 381/126 - After reducing the fraction, the answer is 127/42
- In mixed form: 31/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/18-16/7 75/36-8/7 75/18-8/14 75/18-24/7 75/54-8/7 75/18-8/21 75/18-40/7 75/90-8/7 75/18-8/35 75/18-56/7 75/18-8/49