Subtract 30/18 from 84/10
1st number: 8 4/10, 2nd number: 1 12/18
84/10 - 30/18 is 101/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
84/10 = 84 × 9/10 × 9 = 756/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
30/18 = 30 × 5/18 × 5 = 150/90 - Subtract the two like fractions:
756/90 - 150/90 = 756 - 150/90 = 606/90 - After reducing the fraction, the answer is 101/15
- In mixed form: 611/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-60/18 84/20-30/18 84/10-30/36 84/10-90/18 84/30-30/18 84/10-30/54 84/50-30/18 84/10-30/90 84/70-30/18