Subtract 4/7 from 40/18
1st number: 2 4/18, 2nd number: 4/7
40/18 - 4/7 is 104/63.
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,
40/18 = 40 × 7/18 × 7 = 280/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
4/7 = 4 × 18/7 × 18 = 72/126 - Subtract the two like fractions:
280/126 - 72/126 = 280 - 72/126 = 208/126 - After reducing the fraction, the answer is 104/63
- In mixed form: 141/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18-4/7 40/18-8/7 40/36-4/7 40/18-4/14 40/18-12/7 40/54-4/7 40/18-4/21 40/18-20/7 40/90-4/7 40/18-4/35 40/18-28/7 40/18-4/49