Subtract 50/42 from 8/15
1st number: 8/15, 2nd number: 1 8/42
8/15 - 50/42 is -23/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
8/15 = 8 × 14/15 × 14 = 112/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
50/42 = 50 × 5/42 × 5 = 250/210 - Subtract the two like fractions:
112/210 - 250/210 = 112 - 250/210 = -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: 16/15-50/42 8/30-50/42 8/15-50/84 24/15-50/42 8/45-50/42 40/15-50/42 8/75-50/42 56/15-50/42