Subtract 81/24 from 25/84
1st number: 25/84, 2nd number: 3 9/24
25/84 - 81/24 is -517/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
25/84 = 25 × 2/84 × 2 = 50/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
81/24 = 81 × 7/24 × 7 = 567/168 - Subtract the two like fractions:
50/168 - 567/168 = 50 - 567/168 = -517/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84-81/24 25/84-81/48 75/84-81/24 25/84-81/72