Subtract 2/18 from 40/75
40/75 - 2/18 is 19/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
40/75 = 40 × 6/75 × 6 = 240/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
2/18 = 2 × 25/18 × 25 = 50/450 - Subtract the two like fractions:
240/450 - 50/450 = 240 - 50/450 = 190/450 - After reducing the fraction, the answer is 19/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/75-2/18 40/75-4/18 40/75-2/36 40/75-6/18 40/75-2/54 40/75-10/18 40/75-2/90 40/75-14/18