Subtract 40/6 from 90/30
1st number: 3 0/30, 2nd number: 6 4/6
90/30 - 40/6 is -11/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
90/30 = 90 × 1/30 × 1 = 90/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
40/6 = 40 × 5/6 × 5 = 200/30 - Subtract the two like fractions:
90/30 - 200/30 = 90 - 200/30 = -110/30 - After reducing the fraction, the answer is -11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-80/6 90/60-40/6 90/30-40/12 90/30-40/18 90/30-40/30 90/30-40/42