Subtract 8/25 from 28/45
28/45 - 8/25 is 68/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
28/45 = 28 × 5/45 × 5 = 140/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
8/25 = 8 × 9/25 × 9 = 72/225 - Subtract the two like fractions:
140/225 - 72/225 = 140 - 72/225 = 68/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-8/25 28/45-16/25 28/90-8/25 28/45-8/50 84/45-8/25 28/45-24/25 28/45-8/75 28/45-40/25 28/45-56/25