Answers

Subtract 15/36 from 42/4

1^st number: 10 2/4, 2^nd number: 15/36

42/4 - 15/36 is 121/12.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 36 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 4 × 9 = 36,
   42/4 = 42 × 9/4 × 9 = 378/36
3. Likewise, for the 2nd fraction, since 36 × 1 = 36,
   15/36 = 15 × 1/36 × 1 = 15/36
4. Subtract the two like fractions:
   378/36 - 15/36 = 378 - 15/36 = 363/36
5. After reducing the fraction, the answer is 121/12
6. In mixed form: 101/12

MathStep (Works offline)

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

Related: ⁸⁴/₄-¹⁵/₃₆ ⁴²/₄-³⁰/₃₆ ⁴²/₈-¹⁵/₃₆ ⁴²/₄-¹⁵/₇₂ ⁴²/₄-⁴⁵/₃₆ ⁴²/₁₂-¹⁵/₃₆ ⁴²/₄-⁷⁵/₃₆ ⁴²/₂₀-¹⁵/₃₆ ⁴²/₂₈-¹⁵/₃₆

Subtract Fractions Calculator