Subtract 45/28 from 40/3
1st number: 13 1/3, 2nd number: 1 17/28
40/3 - 45/28 is 985/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 3 × 28 = 84,
40/3 = 40 × 28/3 × 28 = 1120/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
45/28 = 45 × 3/28 × 3 = 135/84 - Subtract the two like fractions:
1120/84 - 135/84 = 1120 - 135/84 = 985/84 - In mixed form: 1161/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/3-45/28 40/3-90/28 40/6-45/28 40/3-45/56 40/9-45/28 40/3-45/84 40/15-45/28 40/21-45/28