Subtract 18/10 from 20/16
1st number: 1 4/16, 2nd number: 1 8/10
20/16 - 18/10 is -11/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
20/16 = 20 × 5/16 × 5 = 100/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
18/10 = 18 × 8/10 × 8 = 144/80 - Subtract the two like fractions:
100/80 - 144/80 = 100 - 144/80 = -44/80 - After reducing the fraction, the answer is -11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/16-18/10 20/16-36/10 20/32-18/10 20/16-18/20 60/16-18/10 20/16-54/10 20/48-18/10 20/16-18/30 20/16-90/10 20/80-18/10 20/16-18/50 20/16-18/70