Subtract 8/3 from 42/10
1st number: 4 2/10, 2nd number: 2 2/3
42/10 - 8/3 is 23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
42/10 = 42 × 3/10 × 3 = 126/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
8/3 = 8 × 10/3 × 10 = 80/30 - Subtract the two like fractions:
126/30 - 80/30 = 126 - 80/30 = 46/30 - After reducing the fraction, the answer is 23/15
- In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-8/3 42/10-16/3 42/20-8/3 42/10-8/6 42/10-24/3 42/30-8/3 42/10-8/9 42/10-40/3 42/50-8/3 42/10-8/15 42/10-56/3 42/70-8/3 42/10-8/21