Subtract 12/8 from 80/4
1st number: 20 0/4, 2nd number: 1 4/8
80/4 - 12/8 is 37/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
80/4 = 80 × 2/4 × 2 = 160/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
12/8 = 12 × 1/8 × 1 = 12/8 - Subtract the two like fractions:
160/8 - 12/8 = 160 - 12/8 = 148/8 - After reducing the fraction, the answer is 37/2
- In mixed form: 181/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-24/8 80/8-12/8 80/4-12/16 80/4-36/8 80/12-12/8 80/4-12/24 80/4-60/8 80/20-12/8 80/4-12/40 80/4-84/8 80/28-12/8 80/4-12/56