Subtract 54/80 from 5/4
1st number: 1 1/4, 2nd number: 54/80
5/4 - 54/80 is 23/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
5/4 = 5 × 20/4 × 20 = 100/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
54/80 = 54 × 1/80 × 1 = 54/80 - Subtract the two like fractions:
100/80 - 54/80 = 100 - 54/80 = 46/80 - After reducing the fraction, the answer is 23/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/4-54/80 5/8-54/80 15/4-54/80 5/12-54/80 25/4-54/80 5/20-54/80 35/4-54/80 5/28-54/80