Subtract 4/50 from 28/45
28/45 - 4/50 is 122/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 45 × 10 = 450,
28/45 = 28 × 10/45 × 10 = 280/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
4/50 = 4 × 9/50 × 9 = 36/450 - Subtract the two like fractions:
280/450 - 36/450 = 280 - 36/450 = 244/450 - After reducing the fraction, the answer is 122/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-4/50 28/45-8/50 28/90-4/50 84/45-4/50 28/45-12/50 28/45-20/50 28/45-28/50