Subtract 10/42 from 15/50
15/50 - 10/42 is 13/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
15/50 = 15 × 21/50 × 21 = 315/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
10/42 = 10 × 25/42 × 25 = 250/1050 - Subtract the two like fractions:
315/1050 - 250/1050 = 315 - 250/1050 = 65/1050 - After reducing the fraction, the answer is 13/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/50-10/42 15/50-20/42 15/50-10/84 45/50-10/42 15/50-30/42 75/50-10/42 15/50-50/42 15/50-70/42