Subtract 80/18 from 25/2
1st number: 12 1/2, 2nd number: 4 8/18
25/2 - 80/18 is 145/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
25/2 = 25 × 9/2 × 9 = 225/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
80/18 = 80 × 1/18 × 1 = 80/18 - Subtract the two like fractions:
225/18 - 80/18 = 225 - 80/18 = 145/18 - In mixed form: 81/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/2-80/18 25/4-80/18 25/2-80/36 75/2-80/18 25/6-80/18 25/2-80/54 25/10-80/18 25/2-80/90 25/14-80/18