Subtract 4/90 from 84/5
1st number: 16 4/5, 2nd number: 4/90
84/5 - 4/90 is 754/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
84/5 = 84 × 18/5 × 18 = 1512/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
4/90 = 4 × 1/90 × 1 = 4/90 - Subtract the two like fractions:
1512/90 - 4/90 = 1512 - 4/90 = 1508/90 - After reducing the fraction, the answer is 754/45
- In mixed form: 1634/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-8/90 84/10-4/90 84/5-12/90 84/15-4/90 84/5-20/90 84/25-4/90 84/5-28/90 84/35-4/90