Subtract 7/40 from 9/3
1st number: 3 0/3, 2nd number: 7/40
9/3 - 7/40 is 113/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
9/3 = 9 × 40/3 × 40 = 360/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
7/40 = 7 × 3/40 × 3 = 21/120 - Subtract the two like fractions:
360/120 - 21/120 = 360 - 21/120 = 339/120 - After reducing the fraction, the answer is 113/40
- In mixed form: 233/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/3-7/40 9/3-14/40 9/6-7/40 9/3-7/80 27/3-7/40 9/3-21/40 45/3-7/40 9/3-35/40 9/15-7/40 63/3-7/40 9/3-49/40 9/21-7/40