Subtract 42/24 from 28/4
1st number: 7 0/4, 2nd number: 1 18/24
28/4 - 42/24 is 21/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 4 × 6 = 24,
28/4 = 28 × 6/4 × 6 = 168/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
42/24 = 42 × 1/24 × 1 = 42/24 - Subtract the two like fractions:
168/24 - 42/24 = 168 - 42/24 = 126/24 - After reducing the fraction, the answer is 21/4
- In mixed form: 51/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4-42/24 28/4-84/24 28/8-42/24 28/4-42/48 84/4-42/24 28/12-42/24 28/4-42/72 28/20-42/24