Subtract 7/8 from 80/20
1st number: 4 0/20, 2nd number: 7/8
80/20 - 7/8 is 25/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
80/20 = 80 × 2/20 × 2 = 160/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
7/8 = 7 × 5/8 × 5 = 35/40 - Subtract the two like fractions:
160/40 - 35/40 = 160 - 35/40 = 125/40 - After reducing the fraction, the answer is 25/8
- In mixed form: 31/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20-14/8 80/40-7/8 80/20-7/16 80/20-21/8 80/60-7/8 80/20-7/24 80/20-35/8 80/20-7/40 80/20-49/8 80/20-7/56