Subtract 7/80 from 28/25
1st number: 1 3/25, 2nd number: 7/80
28/25 - 7/80 is 413/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
28/25 = 28 × 16/25 × 16 = 448/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
7/80 = 7 × 5/80 × 5 = 35/400 - Subtract the two like fractions:
448/400 - 35/400 = 448 - 35/400 = 413/400 - In mixed form: 113/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/25-7/80 28/25-14/80 28/50-7/80 84/25-7/80 28/25-21/80 28/75-7/80 28/25-35/80 28/25-49/80