Subtract 9/40 from 45/5
1st number: 9 0/5, 2nd number: 9/40
45/5 - 9/40 is 351/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
45/5 = 45 × 8/5 × 8 = 360/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
9/40 = 9 × 1/40 × 1 = 9/40 - Subtract the two like fractions:
360/40 - 9/40 = 360 - 9/40 = 351/40 - In mixed form: 831/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-9/40 45/5-18/40 45/10-9/40 45/5-9/80 45/5-27/40 45/15-9/40 45/5-45/40 45/25-9/40 45/5-63/40 45/35-9/40