Subtract 15/90 from 84/15
1st number: 5 9/15, 2nd number: 15/90
84/15 - 15/90 is 163/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
84/15 = 84 × 6/15 × 6 = 504/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Subtract the two like fractions:
504/90 - 15/90 = 504 - 15/90 = 489/90 - After reducing the fraction, the answer is 163/30
- In mixed form: 513/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15-30/90 84/30-15/90 84/15-45/90 84/45-15/90 84/15-75/90 84/75-15/90