Subtract 80/60 from 45/50
1st number: 45/50, 2nd number: 1 20/60
45/50 - 80/60 is -13/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 60 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 50 × 6 = 300,
45/50 = 45 × 6/50 × 6 = 270/300 - Likewise, for the 2nd fraction, since 60 × 5 = 300,
80/60 = 80 × 5/60 × 5 = 400/300 - Subtract the two like fractions:
270/300 - 400/300 = 270 - 400/300 = -130/300 - After reducing the fraction, the answer is -13/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/50-80/60