Subtract 30/54 from 45/15
1st number: 3 0/15, 2nd number: 30/54
45/15 - 30/54 is 22/9.
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,
45/15 = 45 × 18/15 × 18 = 810/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
30/54 = 30 × 5/54 × 5 = 150/270 - Subtract the two like fractions:
810/270 - 150/270 = 810 - 150/270 = 660/270 - After reducing the fraction, the answer is 22/9
- In mixed form: 24/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15-30/54 45/15-60/54 45/30-30/54 45/15-90/54 45/75-30/54