Subtract 1/7 from 16/42
16/42 - 1/7 is 5/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
16/42 = 16 × 1/42 × 1 = 16/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
1/7 = 1 × 6/7 × 6 = 6/42 - Subtract the two like fractions:
16/42 - 6/42 = 16 - 6/42 = 10/42 - After reducing the fraction, the answer is 5/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42-1/7 16/42-2/7 16/84-1/7 16/42-1/14 48/42-1/7 16/42-3/7 16/42-1/21 80/42-1/7 16/42-5/7 16/42-1/35 16/42-1/49