Subtract 42/10 from 56/9
1st number: 6 2/9, 2nd number: 4 2/10
56/9 - 42/10 is 91/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
56/9 = 56 × 10/9 × 10 = 560/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
42/10 = 42 × 9/10 × 9 = 378/90 - Subtract the two like fractions:
560/90 - 378/90 = 560 - 378/90 = 182/90 - After reducing the fraction, the answer is 91/45
- In mixed form: 21/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9-84/10 56/18-42/10 56/9-42/20 56/27-42/10 56/9-42/30 56/45-42/10 56/9-42/50 56/63-42/10 56/9-42/70