Subtract 5/40 from 16/18
16/18 - 5/40 is 55/72.
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,
16/18 = 16 × 20/18 × 20 = 320/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
5/40 = 5 × 9/40 × 9 = 45/360 - Subtract the two like fractions:
320/360 - 45/360 = 320 - 45/360 = 275/360 - After reducing the fraction, the answer is 55/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/18-5/40 16/18-10/40 16/36-5/40 16/18-5/80 48/18-5/40 16/18-15/40 16/54-5/40 80/18-5/40 16/18-25/40 16/90-5/40 16/18-35/40