Subtract 5/42 from 15/4
1st number: 3 3/4, 2nd number: 5/42
15/4 - 5/42 is 305/84.
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,
5/42 = 5 × 2/42 × 2 = 10/84 - Subtract the two like fractions:
315/84 - 10/84 = 315 - 10/84 = 305/84 - In mixed form: 353/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4-5/42 15/4-10/42 15/8-5/42 15/4-5/84 45/4-5/42 15/4-15/42 15/12-5/42 75/4-5/42 15/4-25/42 15/20-5/42 15/4-35/42 15/28-5/42