Subtract 40/18 from 30/60
1st number: 30/60, 2nd number: 2 4/18
30/60 - 40/18 is -31/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
30/60 = 30 × 3/60 × 3 = 90/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
40/18 = 40 × 10/18 × 10 = 400/180 - Subtract the two like fractions:
90/180 - 400/180 = 90 - 400/180 = -310/180 - After reducing the fraction, the answer is -31/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60-80/18 30/60-40/36 90/60-40/18 30/60-40/54 30/60-40/90