Subtract 84/30 from 3/18
1st number: 3/18, 2nd number: 2 24/30
3/18 - 84/30 is -79/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
84/30 = 84 × 3/30 × 3 = 252/90 - Subtract the two like fractions:
15/90 - 252/90 = 15 - 252/90 = -237/90 - After reducing the fraction, the answer is -79/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18-84/30 3/36-84/30 3/18-84/60 9/18-84/30 3/54-84/30 3/18-84/90 15/18-84/30 3/90-84/30 21/18-84/30