Subtract 28/56 from 42/8
1st number: 5 2/8, 2nd number: 28/56
42/8 - 28/56 is 19/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
42/8 = 42 × 7/8 × 7 = 294/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
28/56 = 28 × 1/56 × 1 = 28/56 - Subtract the two like fractions:
294/56 - 28/56 = 294 - 28/56 = 266/56 - After reducing the fraction, the answer is 19/4
- In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8-28/56 42/16-28/56 42/8-84/56 42/24-28/56 42/40-28/56 42/56-28/56