Subtract 25/21 from 6/16
1st number: 6/16, 2nd number: 1 4/21
6/16 - 25/21 is -137/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
6/16 = 6 × 21/16 × 21 = 126/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
25/21 = 25 × 16/21 × 16 = 400/336 - Subtract the two like fractions:
126/336 - 400/336 = 126 - 400/336 = -274/336 - After reducing the fraction, the answer is -137/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/16-25/21 6/16-50/21 6/32-25/21 6/16-25/42 18/16-25/21 6/16-75/21 6/48-25/21 6/16-25/63 30/16-25/21 6/80-25/21 42/16-25/21