Answers

Subtract 3/63 from 75/72

1^st number: 1 3/72, 2^nd number: 3/63

75/72 - 3/63 is 167/168.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 63 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   75/72 = 75 × 7/72 × 7 = 525/504
3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
   3/63 = 3 × 8/63 × 8 = 24/504
4. Subtract the two like fractions:
   525/504 - 24/504 = 525 - 24/504 = 501/504
5. After reducing the fraction, the answer is 167/168

MathStep (Works offline)

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

Related: ⁷⁵/₇₂-⁶/₆₃ ⁷⁵/₇₂-⁹/₆₃ ⁷⁵/₇₂-¹⁵/₆₃ ⁷⁵/₇₂-²¹/₆₃

Subtract Fractions Calculator