Answers

Subtract 8/40 from 84/12

1^st number: 7 0/12, 2^nd number: 8/40

84/12 - 8/40 is 34/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 12 × 10 = 120,
   84/12 = 84 × 10/12 × 10 = 840/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   8/40 = 8 × 3/40 × 3 = 24/120
4. Subtract the two like fractions:
   840/120 - 24/120 = 840 - 24/120 = 816/120
5. After reducing the fraction, the answer is 34/5
6. In mixed form: 64/5

MathStep (Works offline)

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

Related: ⁸⁴/₁₂-¹⁶/₄₀ ⁸⁴/₂₄-⁸/₄₀ ⁸⁴/₁₂-⁸/₈₀ ⁸⁴/₁₂-²⁴/₄₀ ⁸⁴/₃₆-⁸/₄₀ ⁸⁴/₆₀-⁸/₄₀ ⁸⁴/₁₂-⁵⁶/₄₀

Subtract Fractions Calculator