Subtract 3/15 from 84/54
1st number: 1 30/54, 2nd number: 3/15
84/54 - 3/15 is 61/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 15 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
84/54 = 84 × 5/54 × 5 = 420/270 - Likewise, for the 2nd fraction, since 15 × 18 = 270,
3/15 = 3 × 18/15 × 18 = 54/270 - Subtract the two like fractions:
420/270 - 54/270 = 420 - 54/270 = 366/270 - After reducing the fraction, the answer is 61/45
- In mixed form: 116/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/54-6/15 84/54-3/30 84/54-9/15 84/54-3/45 84/54-3/75 84/54-21/15