Subtract 70/5 from 21/98
1st number: 21/98, 2nd number: 14 0/5
21/98 - 70/5 is -193/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 5 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
21/98 = 21 × 5/98 × 5 = 105/490 - Likewise, for the 2nd fraction, since 5 × 98 = 490,
70/5 = 70 × 98/5 × 98 = 6860/490 - Subtract the two like fractions:
105/490 - 6860/490 = 105 - 6860/490 = -6755/490 - After reducing the fraction, the answer is -193/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/98-70/5 21/98-70/10 63/98-70/5 21/98-70/15 21/98-70/25 21/98-70/35