Subtract 6/16 from 84/42
1st number: 2 0/42, 2nd number: 6/16
84/42 - 6/16 is 13/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
84/42 = 84 × 8/42 × 8 = 672/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
6/16 = 6 × 21/16 × 21 = 126/336 - Subtract the two like fractions:
672/336 - 126/336 = 672 - 126/336 = 546/336 - After reducing the fraction, the answer is 13/8
- In mixed form: 15/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/42-12/16 84/42-6/32 84/42-18/16 84/42-6/48 84/42-30/16 84/42-6/80 84/42-42/16