Subtract 15/3 from 42/8
1st number: 5 2/8, 2nd number: 5 0/3
42/8 - 15/3 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 3 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
42/8 = 42 × 3/8 × 3 = 126/24 - Likewise, for the 2nd fraction, since 3 × 8 = 24,
15/3 = 15 × 8/3 × 8 = 120/24 - Subtract the two like fractions:
126/24 - 120/24 = 126 - 120/24 = 6/24 - After reducing the fraction, the answer is 1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8-15/3 42/8-30/3 42/16-15/3 42/8-15/6 42/8-45/3 42/24-15/3 42/8-15/9 42/8-75/3 42/40-15/3 42/56-15/3 42/8-15/21