Subtract 5/20 from 84/15
1st number: 5 9/15, 2nd number: 5/20
84/15 - 5/20 is 107/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
84/15 = 84 × 4/15 × 4 = 336/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
5/20 = 5 × 3/20 × 3 = 15/60 - Subtract the two like fractions:
336/60 - 15/60 = 336 - 15/60 = 321/60 - After reducing the fraction, the answer is 107/20
- In mixed form: 57/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15-10/20 84/30-5/20 84/15-5/40 84/15-15/20 84/45-5/20 84/15-5/60 84/15-25/20 84/75-5/20 84/15-35/20