Subtract 40/30 from 54/9
1st number: 6 0/9, 2nd number: 1 10/30
54/9 - 40/30 is 14/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
54/9 = 54 × 10/9 × 10 = 540/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
40/30 = 40 × 3/30 × 3 = 120/90 - Subtract the two like fractions:
540/90 - 120/90 = 540 - 120/90 = 420/90 - After reducing the fraction, the answer is 14/3
- In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/9-80/30 54/18-40/30 54/9-40/60 54/27-40/30 54/9-40/90 54/45-40/30 54/63-40/30