Subtract 42/56 from 42/10
1st number: 4 2/10, 2nd number: 42/56
42/10 - 42/56 is 69/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 10 × 28 = 280,
42/10 = 42 × 28/10 × 28 = 1176/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
42/56 = 42 × 5/56 × 5 = 210/280 - Subtract the two like fractions:
1176/280 - 210/280 = 1176 - 210/280 = 966/280 - After reducing the fraction, the answer is 69/20
- In mixed form: 39/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-42/56 42/10-84/56 42/20-42/56 42/30-42/56 42/50-42/56 42/70-42/56