Subtract 90/40 from 60/12
1st number: 5 0/12, 2nd number: 2 10/40
60/12 - 90/40 is 11/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
60/12 = 60 × 10/12 × 10 = 600/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
90/40 = 90 × 3/40 × 3 = 270/120 - Subtract the two like fractions:
600/120 - 270/120 = 600 - 270/120 = 330/120 - After reducing the fraction, the answer is 11/4
- In mixed form: 23/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/24-90/40 60/12-90/80 60/36-90/40 60/84-90/40