Subtract 25/50 from 42/18
1st number: 2 6/18, 2nd number: 25/50
42/18 - 25/50 is 11/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
42/18 = 42 × 25/18 × 25 = 1050/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
25/50 = 25 × 9/50 × 9 = 225/450 - Subtract the two like fractions:
1050/450 - 225/450 = 1050 - 225/450 = 825/450 - After reducing the fraction, the answer is 11/6
- In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-25/50 42/36-25/50 42/18-75/50 42/54-25/50 42/90-25/50