Subtract 98/6 from 1/21
1st number: 1/21, 2nd number: 16 2/6
1/21 - 98/6 is -114/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
1/21 = 1 × 2/21 × 2 = 2/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
98/6 = 98 × 7/6 × 7 = 686/42 - Subtract the two like fractions:
2/42 - 686/42 = 2 - 686/42 = -684/42 - After reducing the fraction, the answer is -114/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21-98/6 1/42-98/6 1/21-98/12 3/21-98/6 1/63-98/6 1/21-98/18 5/21-98/6 1/21-98/30 7/21-98/6 1/21-98/42