Subtract 28/50 from 8/80
8/80 - 28/50 is -23/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 50 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
8/80 = 8 × 5/80 × 5 = 40/400 - Likewise, for the 2nd fraction, since 50 × 8 = 400,
28/50 = 28 × 8/50 × 8 = 224/400 - Subtract the two like fractions:
40/400 - 224/400 = 40 - 224/400 = -184/400 - After reducing the fraction, the answer is -23/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/80-28/50 8/80-56/50 24/80-28/50 8/80-84/50 40/80-28/50 56/80-28/50