Subtract 72/15 from 3/98
1st number: 3/98, 2nd number: 4 12/15
3/98 - 72/15 is -2337/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 15 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 98 × 15 = 1470,
3/98 = 3 × 15/98 × 15 = 45/1470 - Likewise, for the 2nd fraction, since 15 × 98 = 1470,
72/15 = 72 × 98/15 × 98 = 7056/1470 - Subtract the two like fractions:
45/1470 - 7056/1470 = 45 - 7056/1470 = -7011/1470 - After reducing the fraction, the answer is -2337/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/98-72/15 3/98-72/30 9/98-72/15 3/98-72/45 15/98-72/15 3/98-72/75 21/98-72/15