Subtract 4/63 from 21/98
21/98 - 4/63 is 19/126.
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,
4/63 = 4 × 14/63 × 14 = 56/882 - Subtract the two like fractions:
189/882 - 56/882 = 189 - 56/882 = 133/882 - After reducing the fraction, the answer is 19/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/98-4/63 21/98-8/63 63/98-4/63 21/98-12/63 21/98-20/63 21/98-28/63