Subtract 25/50 from 42/49
42/49 - 25/50 is 5/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 50 is 2450
Next, find the equivalent fraction of both fractional numbers with denominator 2450 - For the 1st fraction, since 49 × 50 = 2450,
42/49 = 42 × 50/49 × 50 = 2100/2450 - Likewise, for the 2nd fraction, since 50 × 49 = 2450,
25/50 = 25 × 49/50 × 49 = 1225/2450 - Subtract the two like fractions:
2100/2450 - 1225/2450 = 2100 - 1225/2450 = 875/2450 - After reducing the fraction, the answer is 5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/49-25/50 42/98-25/50 42/49-75/50