Answers

Subtract 21/42 from 49/60

49/60 - 21/42 is 19/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 42 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 60 × 7 = 420,
   49/60 = 49 × 7/60 × 7 = 343/420
3. Likewise, for the 2nd fraction, since 42 × 10 = 420,
   21/42 = 21 × 10/42 × 10 = 210/420
4. Subtract the two like fractions:
   343/420 - 210/420 = 343 - 210/420 = 133/420
5. After reducing the fraction, the answer is 19/60

MathStep (Works offline)

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

Related: ⁹⁸/₆₀-²¹/₄₂ ⁴⁹/₆₀-²¹/₈₄ ⁴⁹/₆₀-⁶³/₄₂

Subtract Fractions Calculator