Subtract 7/80 from 28/2
1st number: 14 0/2, 2nd number: 7/80
28/2 - 7/80 is 1113/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
28/2 = 28 × 40/2 × 40 = 1120/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
7/80 = 7 × 1/80 × 1 = 7/80 - Subtract the two like fractions:
1120/80 - 7/80 = 1120 - 7/80 = 1113/80 - In mixed form: 1373/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/2-7/80 28/2-14/80 28/4-7/80 84/2-7/80 28/2-21/80 28/6-7/80 28/2-35/80 28/10-7/80 28/2-49/80 28/14-7/80