Subtract 4/72 from 3/98
3/98 - 4/72 is -11/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 98 × 36 = 3528,
3/98 = 3 × 36/98 × 36 = 108/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
4/72 = 4 × 49/72 × 49 = 196/3528 - Subtract the two like fractions:
108/3528 - 196/3528 = 108 - 196/3528 = -88/3528 - After reducing the fraction, the answer is -11/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/98-4/72 3/98-8/72 9/98-4/72 3/98-12/72 15/98-4/72 3/98-20/72 21/98-4/72 3/98-28/72