Answers

Subtract 9/80 from 30/60

30/60 - 9/80 is 31/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 80 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 60 × 4 = 240,
   30/60 = 30 × 4/60 × 4 = 120/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   9/80 = 9 × 3/80 × 3 = 27/240
4. Subtract the two like fractions:
   120/240 - 27/240 = 120 - 27/240 = 93/240
5. After reducing the fraction, the answer is 31/80

MathStep (Works offline)

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

Related: ³⁰/₆₀-¹⁸/₈₀ ⁹⁰/₆₀-⁹/₈₀ ³⁰/₆₀-²⁷/₈₀ ³⁰/₆₀-⁴⁵/₈₀ ³⁰/₆₀-⁶³/₈₀

Subtract Fractions Calculator