Subtract 9/50 from 42/5
1st number: 8 2/5, 2nd number: 9/50
42/5 - 9/50 is 411/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 50 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 5 × 10 = 50,
42/5 = 42 × 10/5 × 10 = 420/50 - Likewise, for the 2nd fraction, since 50 × 1 = 50,
9/50 = 9 × 1/50 × 1 = 9/50 - Subtract the two like fractions:
420/50 - 9/50 = 420 - 9/50 = 411/50 - In mixed form: 811/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-9/50 42/5-18/50 42/10-9/50 42/5-27/50 42/15-9/50 42/5-45/50 42/25-9/50 42/5-63/50 42/35-9/50