Subtract 42/16 from 1/42
1st number: 1/42, 2nd number: 2 10/16
1/42 - 42/16 is -437/168.
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,
1/42 = 1 × 8/42 × 8 = 8/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
42/16 = 42 × 21/16 × 21 = 882/336 - Subtract the two like fractions:
8/336 - 882/336 = 8 - 882/336 = -874/336 - After reducing the fraction, the answer is -437/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42-42/16 1/42-84/16 1/84-42/16 1/42-42/32 3/42-42/16 1/42-42/48 5/42-42/16 1/42-42/80 7/42-42/16