Subtract 2/10 from 42/9
1st number: 4 6/9, 2nd number: 2/10
42/9 - 2/10 is 67/15.
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,
42/9 = 42 × 10/9 × 10 = 420/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
2/10 = 2 × 9/10 × 9 = 18/90 - Subtract the two like fractions:
420/90 - 18/90 = 420 - 18/90 = 402/90 - After reducing the fraction, the answer is 67/15
- In mixed form: 47/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9-2/10 42/9-4/10 42/18-2/10 42/9-2/20 42/9-6/10 42/27-2/10 42/9-2/30 42/45-2/10 42/9-2/50 42/9-14/10 42/63-2/10 42/9-2/70