Subtract 24/4 from 42/18
1st number: 2 6/18, 2nd number: 6 0/4
42/18 - 24/4 is -11/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
42/18 = 42 × 2/18 × 2 = 84/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
24/4 = 24 × 9/4 × 9 = 216/36 - Subtract the two like fractions:
84/36 - 216/36 = 84 - 216/36 = -132/36 - After reducing the fraction, the answer is -11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-24/4 42/18-48/4 42/36-24/4 42/18-24/8 42/18-72/4 42/54-24/4 42/18-24/12 42/90-24/4 42/18-24/20 42/18-24/28