Subtract 40/10 from 16/18
1st number: 16/18, 2nd number: 4 0/10
16/18 - 40/10 is -28/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
16/18 = 16 × 5/18 × 5 = 80/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
40/10 = 40 × 9/10 × 9 = 360/90 - Subtract the two like fractions:
80/90 - 360/90 = 80 - 360/90 = -280/90 - After reducing the fraction, the answer is -28/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/18-40/10 16/18-80/10 16/36-40/10 16/18-40/20 48/18-40/10 16/54-40/10 16/18-40/30 80/18-40/10 16/90-40/10 16/18-40/50 16/18-40/70