Subtract 16/40 from 10/18
10/18 - 16/40 is 7/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
10/18 = 10 × 20/18 × 20 = 200/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
16/40 = 16 × 9/40 × 9 = 144/360 - Subtract the two like fractions:
200/360 - 144/360 = 200 - 144/360 = 56/360 - After reducing the fraction, the answer is 7/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18-16/40 10/18-32/40 10/36-16/40 10/18-16/80 30/18-16/40 10/18-48/40 10/54-16/40 50/18-16/40 10/18-80/40 10/90-16/40 70/18-16/40