Answers

Subtract 21/12 from 60/30

1^st number: 2 0/30, 2^nd number: 1 9/12

60/30 - 21/12 is 1/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 12 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 30 × 2 = 60,
   60/30 = 60 × 2/30 × 2 = 120/60
3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
   21/12 = 21 × 5/12 × 5 = 105/60
4. Subtract the two like fractions:
   120/60 - 105/60 = 120 - 105/60 = 15/60
5. After reducing the fraction, the answer is 1/4

MathStep (Works offline)

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

Related: ⁶⁰/₃₀-⁴²/₁₂ ⁶⁰/₃₀-²¹/₂₄ ⁶⁰/₃₀-⁶³/₁₂ ⁶⁰/₉₀-²¹/₁₂ ⁶⁰/₃₀-²¹/₃₆ ⁶⁰/₃₀-²¹/₆₀ ⁶⁰/₃₀-²¹/₈₄

Subtract Fractions Calculator