Subtract 98/5 from 63/81
1st number: 63/81, 2nd number: 19 3/5
63/81 - 98/5 is -847/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 5 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
63/81 = 63 × 5/81 × 5 = 315/405 - Likewise, for the 2nd fraction, since 5 × 81 = 405,
98/5 = 98 × 81/5 × 81 = 7938/405 - Subtract the two like fractions:
315/405 - 7938/405 = 315 - 7938/405 = -7623/405 - After reducing the fraction, the answer is -847/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/81-98/10 63/81-98/15 63/81-98/25 63/81-98/35