Subtract 4/16 from 42/5
1st number: 8 2/5, 2nd number: 4/16
42/5 - 4/16 is 163/20.
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,
42/5 = 42 × 16/5 × 16 = 672/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
4/16 = 4 × 5/16 × 5 = 20/80 - Subtract the two like fractions:
672/80 - 20/80 = 672 - 20/80 = 652/80 - After reducing the fraction, the answer is 163/20
- In mixed form: 83/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-4/16 42/5-8/16 42/10-4/16 42/5-4/32 42/5-12/16 42/15-4/16 42/5-4/48 42/5-20/16 42/25-4/16 42/5-4/80 42/5-28/16 42/35-4/16