Subtract 28/45 from 3/5
3/5 - 28/45 is -1/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
3/5 = 3 × 9/5 × 9 = 27/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
28/45 = 28 × 1/45 × 1 = 28/45 - Subtract the two like fractions:
27/45 - 28/45 = 27 - 28/45 = -1/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/5-28/45 3/5-56/45 3/10-28/45 3/5-28/90 9/5-28/45 3/5-84/45 3/15-28/45 15/5-28/45 3/25-28/45 21/5-28/45 3/35-28/45