Subtract 25/24 from 28/80
1st number: 28/80, 2nd number: 1 1/24
28/80 - 25/24 is -83/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 24 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
28/80 = 28 × 3/80 × 3 = 84/240 - Likewise, for the 2nd fraction, since 24 × 10 = 240,
25/24 = 25 × 10/24 × 10 = 250/240 - Subtract the two like fractions:
84/240 - 250/240 = 84 - 250/240 = -166/240 - After reducing the fraction, the answer is -83/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/80-25/24 28/80-50/24 28/80-25/48 84/80-25/24 28/80-75/24 28/80-25/72