Subtract 98/70 from 21/14
1st number: 1 7/14, 2nd number: 1 28/70
21/14 - 98/70 is 1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
21/14 = 21 × 5/14 × 5 = 105/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
98/70 = 98 × 1/70 × 1 = 98/70 - Subtract the two like fractions:
105/70 - 98/70 = 105 - 98/70 = 7/70 - After reducing the fraction, the answer is 1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14-98/70 21/28-98/70 63/14-98/70 21/42-98/70 21/70-98/70 21/98-98/70