Subtract 21/98 from 8/30
8/30 - 21/98 is 11/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 98 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
8/30 = 8 × 49/30 × 49 = 392/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
21/98 = 21 × 15/98 × 15 = 315/1470 - Subtract the two like fractions:
392/1470 - 315/1470 = 392 - 315/1470 = 77/1470 - After reducing the fraction, the answer is 11/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/30-21/98 8/30-42/98 8/60-21/98 24/30-21/98 8/30-63/98 8/90-21/98 40/30-21/98 56/30-21/98