Subtract 40/36 from 3/30
1st number: 3/30, 2nd number: 1 4/36
3/30 - 40/36 is -91/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
3/30 = 3 × 6/30 × 6 = 18/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
40/36 = 40 × 5/36 × 5 = 200/180 - Subtract the two like fractions:
18/180 - 200/180 = 18 - 200/180 = -182/180 - After reducing the fraction, the answer is -91/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30-40/36 3/30-80/36 3/60-40/36 3/30-40/72 9/30-40/36 3/90-40/36 15/30-40/36 21/30-40/36