Subtract 5/40 from 45/28
1st number: 1 17/28, 2nd number: 5/40
45/28 - 5/40 is 83/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
45/28 = 45 × 10/28 × 10 = 450/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
5/40 = 5 × 7/40 × 7 = 35/280 - Subtract the two like fractions:
450/280 - 35/280 = 450 - 35/280 = 415/280 - After reducing the fraction, the answer is 83/56
- In mixed form: 127/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28-5/40 45/28-10/40 45/56-5/40 45/28-5/80 45/28-15/40 45/84-5/40 45/28-25/40 45/28-35/40