Subtract 80/10 from 20/25
1st number: 20/25, 2nd number: 8 0/10
20/25 - 80/10 is -36/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 10 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 25 × 2 = 50,
20/25 = 20 × 2/25 × 2 = 40/50 - Likewise, for the 2nd fraction, since 10 × 5 = 50,
80/10 = 80 × 5/10 × 5 = 400/50 - Subtract the two like fractions:
40/50 - 400/50 = 40 - 400/50 = -360/50 - After reducing the fraction, the answer is -36/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/25-80/10 20/50-80/10 20/25-80/20 60/25-80/10 20/75-80/10 20/25-80/30 20/25-80/50 20/25-80/70