Subtract 3/24 from 42/12
1st number: 3 6/12, 2nd number: 3/24
42/12 - 3/24 is 27/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
42/12 = 42 × 2/12 × 2 = 84/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
3/24 = 3 × 1/24 × 1 = 3/24 - Subtract the two like fractions:
84/24 - 3/24 = 84 - 3/24 = 81/24 - After reducing the fraction, the answer is 27/8
- In mixed form: 33/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-3/24 42/12-6/24 42/24-3/24 42/12-3/48 42/12-9/24 42/36-3/24 42/12-3/72 42/12-15/24 42/60-3/24 42/12-21/24 42/84-3/24