Subtract 18/54 from 84/15
1st number: 5 9/15, 2nd number: 18/54
84/15 - 18/54 is 79/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
84/15 = 84 × 18/15 × 18 = 1512/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
18/54 = 18 × 5/54 × 5 = 90/270 - Subtract the two like fractions:
1512/270 - 90/270 = 1512 - 90/270 = 1422/270 - After reducing the fraction, the answer is 79/15
- In mixed form: 54/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15-36/54 84/30-18/54 84/45-18/54 84/15-90/54 84/75-18/54