Subtract 5/20 from 84/12
1st number: 7 0/12, 2nd number: 5/20
84/12 - 5/20 is 27/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
84/12 = 84 × 5/12 × 5 = 420/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
5/20 = 5 × 3/20 × 3 = 15/60 - Subtract the two like fractions:
420/60 - 15/60 = 420 - 15/60 = 405/60 - After reducing the fraction, the answer is 27/4
- In mixed form: 63/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-10/20 84/24-5/20 84/12-5/40 84/12-15/20 84/36-5/20 84/12-5/60 84/12-25/20 84/60-5/20 84/12-35/20