Subtract 63/72 from 3/49
3/49 - 63/72 is -319/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 49 × 72 = 3528,
3/49 = 3 × 72/49 × 72 = 216/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
63/72 = 63 × 49/72 × 49 = 3087/3528 - Subtract the two like fractions:
216/3528 - 3087/3528 = 216 - 3087/3528 = -2871/3528 - After reducing the fraction, the answer is -319/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/49-63/72 3/98-63/72 9/49-63/72 15/49-63/72 21/49-63/72