Subtract 14/16 from 8/42
8/42 - 14/16 is -115/168.
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,
8/42 = 8 × 8/42 × 8 = 64/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
14/16 = 14 × 21/16 × 21 = 294/336 - Subtract the two like fractions:
64/336 - 294/336 = 64 - 294/336 = -230/336 - After reducing the fraction, the answer is -115/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42-14/16 8/42-28/16 8/84-14/16 8/42-14/32 24/42-14/16 8/42-42/16 8/42-14/48 40/42-14/16 8/42-70/16 8/42-14/80 56/42-14/16 8/42-98/16