Subtract 24/18 from 4/7
1st number: 4/7, 2nd number: 1 6/18
4/7 - 24/18 is -16/21.
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,
4/7 = 4 × 18/7 × 18 = 72/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
24/18 = 24 × 7/18 × 7 = 168/126 - Subtract the two like fractions:
72/126 - 168/126 = 72 - 168/126 = -96/126 - After reducing the fraction, the answer is -16/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/7-24/18 4/7-48/18 4/14-24/18 4/7-24/36 12/7-24/18 4/7-72/18 4/21-24/18 4/7-24/54 20/7-24/18 4/35-24/18 4/7-24/90 28/7-24/18 4/49-24/18