Subtract 9/8 from 5/40
1st number: 5/40, 2nd number: 1 1/8
5/40 - 9/8 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
5/40 = 5 × 1/40 × 1 = 5/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
9/8 = 9 × 5/8 × 5 = 45/40 - Subtract the two like fractions:
5/40 - 45/40 = 5 - 45/40 = -40/40 - After reducing the fraction, the answer is -1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/40-9/8 5/40-18/8 5/80-9/8 5/40-9/16 15/40-9/8 5/40-27/8 5/40-9/24 25/40-9/8 5/40-45/8 5/40-9/40 35/40-9/8 5/40-63/8 5/40-9/56