Subtract 4/40 from 84/24
1st number: 3 12/24, 2nd number: 4/40
84/24 - 4/40 is 17/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
84/24 = 84 × 5/24 × 5 = 420/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
4/40 = 4 × 3/40 × 3 = 12/120 - Subtract the two like fractions:
420/120 - 12/120 = 420 - 12/120 = 408/120 - After reducing the fraction, the answer is 17/5
- In mixed form: 32/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/24-8/40 84/48-4/40 84/24-4/80 84/24-12/40 84/72-4/40 84/24-20/40 84/24-28/40