Answers

Subtract 1/63 from 70/75

70/75 - 1/63 is 289/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 63 is 1575
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1575
2. For the 1st fraction, since 75 × 21 = 1575,
   70/75 = 70 × 21/75 × 21 = 1470/1575
3. Likewise, for the 2nd fraction, since 63 × 25 = 1575,
   1/63 = 1 × 25/63 × 25 = 25/1575
4. Subtract the two like fractions:
   1470/1575 - 25/1575 = 1470 - 25/1575 = 1445/1575
5. After reducing the fraction, the answer is 289/315

MathStep (Works offline)

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

Related: ⁷⁰/₇₅-²/₆₃ ⁷⁰/₇₅-³/₆₃ ⁷⁰/₇₅-⁵/₆₃ ⁷⁰/₇₅-⁷/₆₃

Subtract Fractions Calculator