Subtract 4/18 from 54/30
1st number: 1 24/30, 2nd number: 4/18
54/30 - 4/18 is 71/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
54/30 = 54 × 3/30 × 3 = 162/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
4/18 = 4 × 5/18 × 5 = 20/90 - Subtract the two like fractions:
162/90 - 20/90 = 162 - 20/90 = 142/90 - After reducing the fraction, the answer is 71/45
- In mixed form: 126/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30-8/18 54/60-4/18 54/30-4/36 54/30-12/18 54/90-4/18 54/30-4/54 54/30-20/18 54/30-4/90 54/30-28/18