Subtract 16/18 from 36/40
36/40 - 16/18 is 1/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
36/40 = 36 × 9/40 × 9 = 324/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
16/18 = 16 × 20/18 × 20 = 320/360 - Subtract the two like fractions:
324/360 - 320/360 = 324 - 320/360 = 4/360 - After reducing the fraction, the answer is 1/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40-16/18 36/40-32/18 36/80-16/18 36/40-16/36 36/40-48/18 36/40-16/54 36/40-80/18 36/40-16/90