Answers

Subtract 15/75 from 6/80

6/80 - 15/75 is -1/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 75 is 1200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1200
2. For the 1st fraction, since 80 × 15 = 1200,
   6/80 = 6 × 15/80 × 15 = 90/1200
3. Likewise, for the 2nd fraction, since 75 × 16 = 1200,
   15/75 = 15 × 16/75 × 16 = 240/1200
4. Subtract the two like fractions:
   90/1200 - 240/1200 = 90 - 240/1200 = -150/1200
5. After reducing the fraction, the answer is -1/8

MathStep (Works offline)

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

Related: ¹²/₈₀-¹⁵/₇₅ ⁶/₈₀-³⁰/₇₅ ¹⁸/₈₀-¹⁵/₇₅ ⁶/₈₀-⁴⁵/₇₅ ³⁰/₈₀-¹⁵/₇₅ ⁴²/₈₀-¹⁵/₇₅

Subtract Fractions Calculator