Answers

Subtract 27/72 from 42/98

42/98 - 27/72 is 3/56.

Steps for subtracting fractions

1. 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
2. For the 1st fraction, since 98 × 36 = 3528,
   42/98 = 42 × 36/98 × 36 = 1512/3528
3. Likewise, for the 2nd fraction, since 72 × 49 = 3528,
   27/72 = 27 × 49/72 × 49 = 1323/3528
4. Subtract the two like fractions:
   1512/3528 - 1323/3528 = 1512 - 1323/3528 = 189/3528
5. After reducing the fraction, the answer is 3/56

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁸⁴/₉₈-²⁷/₇₂ ⁴²/₉₈-⁵⁴/₇₂ ⁴²/₉₈-⁸¹/₇₂

Subtract Fractions Calculator