Subtract 15/50 from 8/80
8/80 - 15/50 is -1/5.
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,
15/50 = 15 × 8/50 × 8 = 120/400 - Subtract the two like fractions:
40/400 - 120/400 = 40 - 120/400 = -80/400 - After reducing the fraction, the answer is -1/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/80-15/50 8/80-30/50 24/80-15/50 8/80-45/50 40/80-15/50 8/80-75/50 56/80-15/50