Subtract 81/56 from 80/24
1st number: 3 8/24, 2nd number: 1 25/56
80/24 - 81/56 is 317/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
80/24 = 80 × 7/24 × 7 = 560/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
81/56 = 81 × 3/56 × 3 = 243/168 - Subtract the two like fractions:
560/168 - 243/168 = 560 - 243/168 = 317/168 - In mixed form: 1149/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/48-81/56 80/72-81/56