Subtract 20/16 from 8/5
1st number: 1 3/5, 2nd number: 1 4/16
8/5 - 20/16 is 7/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
8/5 = 8 × 16/5 × 16 = 128/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
20/16 = 20 × 5/16 × 5 = 100/80 - Subtract the two like fractions:
128/80 - 100/80 = 128 - 100/80 = 28/80 - After reducing the fraction, the answer is 7/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/5-20/16 8/5-40/16 8/10-20/16 8/5-20/32 24/5-20/16 8/5-60/16 8/15-20/16 8/5-20/48 40/5-20/16 8/25-20/16 8/5-20/80 56/5-20/16 8/35-20/16