Subtract 10/42 from 24/18
1st number: 1 6/18, 2nd number: 10/42
24/18 - 10/42 is 23/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
24/18 = 24 × 7/18 × 7 = 168/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
10/42 = 10 × 3/42 × 3 = 30/126 - Subtract the two like fractions:
168/126 - 30/126 = 168 - 30/126 = 138/126 - After reducing the fraction, the answer is 23/21
- In mixed form: 12/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/18-10/42 24/18-20/42 24/36-10/42 24/18-10/84 72/18-10/42 24/18-30/42 24/54-10/42 24/18-50/42 24/90-10/42 24/18-70/42