Subtract 10/63 from 21/98
21/98 - 10/63 is 1/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 63 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 98 × 9 = 882,
21/98 = 21 × 9/98 × 9 = 189/882 - Likewise, for the 2nd fraction, since 63 × 14 = 882,
10/63 = 10 × 14/63 × 14 = 140/882 - Subtract the two like fractions:
189/882 - 140/882 = 189 - 140/882 = 49/882 - After reducing the fraction, the answer is 1/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/98-10/63 21/98-20/63 63/98-10/63 21/98-30/63 21/98-50/63 21/98-70/63