Subtract 42/50 from 15/4
1st number: 3 3/4, 2nd number: 42/50
15/4 - 42/50 is 291/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 50 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
15/4 = 15 × 25/4 × 25 = 375/100 - Likewise, for the 2nd fraction, since 50 × 2 = 100,
42/50 = 42 × 2/50 × 2 = 84/100 - Subtract the two like fractions:
375/100 - 84/100 = 375 - 84/100 = 291/100 - In mixed form: 291/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4-42/50 15/4-84/50 15/8-42/50 45/4-42/50 15/12-42/50 75/4-42/50 15/20-42/50 15/28-42/50