Subtract 8/15 from 50/42
1st number: 1 8/42, 2nd number: 8/15
50/42 - 8/15 is 23/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
50/42 = 50 × 5/42 × 5 = 250/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
8/15 = 8 × 14/15 × 14 = 112/210 - Subtract the two like fractions:
250/210 - 112/210 = 250 - 112/210 = 138/210 - After reducing the fraction, the answer is 23/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42-16/15 50/84-8/15 50/42-8/30 50/42-24/15 50/42-8/45 50/42-40/15 50/42-8/75 50/42-56/15