Subtract 28/40 from 16/5
1st number: 3 1/5, 2nd number: 28/40
16/5 - 28/40 is 5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
16/5 = 16 × 8/5 × 8 = 128/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
28/40 = 28 × 1/40 × 1 = 28/40 - Subtract the two like fractions:
128/40 - 28/40 = 128 - 28/40 = 100/40 - After reducing the fraction, the answer is 5/2
- In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/5-28/40 16/5-56/40 16/10-28/40 16/5-28/80 48/5-28/40 16/5-84/40 16/15-28/40 80/5-28/40 16/25-28/40 16/35-28/40