Subtract 40/10 from 80/4
1st number: 20 0/4, 2nd number: 4 0/10
80/4 - 40/10 is 16/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
80/4 = 80 × 5/4 × 5 = 400/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
40/10 = 40 × 2/10 × 2 = 80/20 - Subtract the two like fractions:
400/20 - 80/20 = 400 - 80/20 = 320/20 - After reducing the fraction, the answer is 16/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-80/10 80/8-40/10 80/4-40/20 80/12-40/10 80/4-40/30 80/20-40/10 80/4-40/50 80/28-40/10 80/4-40/70