Subtract 20/50 from 9/8
1st number: 1 1/8, 2nd number: 20/50
9/8 - 20/50 is 29/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 50 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 8 × 25 = 200,
9/8 = 9 × 25/8 × 25 = 225/200 - Likewise, for the 2nd fraction, since 50 × 4 = 200,
20/50 = 20 × 4/50 × 4 = 80/200 - Subtract the two like fractions:
225/200 - 80/200 = 225 - 80/200 = 145/200 - After reducing the fraction, the answer is 29/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/8-20/50 9/8-40/50 9/16-20/50 27/8-20/50 9/8-60/50 9/24-20/50 45/8-20/50 9/40-20/50 63/8-20/50 9/56-20/50