Subtract 54/80 from 90/24
1st number: 3 18/24, 2nd number: 54/80
90/24 - 54/80 is 123/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 24 × 10 = 240,
90/24 = 90 × 10/24 × 10 = 900/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
54/80 = 54 × 3/80 × 3 = 162/240 - Subtract the two like fractions:
900/240 - 162/240 = 900 - 162/240 = 738/240 - After reducing the fraction, the answer is 123/40
- In mixed form: 33/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/48-54/80 90/72-54/80