Subtract 24/42 from 15/4
1st number: 3 3/4, 2nd number: 24/42
15/4 - 24/42 is 89/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
15/4 = 15 × 21/4 × 21 = 315/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
24/42 = 24 × 2/42 × 2 = 48/84 - Subtract the two like fractions:
315/84 - 48/84 = 315 - 48/84 = 267/84 - After reducing the fraction, the answer is 89/28
- In mixed form: 35/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4-24/42 15/4-48/42 15/8-24/42 15/4-24/84 45/4-24/42 15/4-72/42 15/12-24/42 75/4-24/42 15/20-24/42 15/28-24/42