Answers

Subtract 20/90 from 84/10

1^st number: 8 4/10, 2^nd number: 20/90

84/10 - 20/90 is 368/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 90 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 10 × 9 = 90,
   84/10 = 84 × 9/10 × 9 = 756/90
3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
   20/90 = 20 × 1/90 × 1 = 20/90
4. Subtract the two like fractions:
   756/90 - 20/90 = 756 - 20/90 = 736/90
5. After reducing the fraction, the answer is 368/45
6. In mixed form: 88/45

MathStep (Works offline)

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

Related: ⁸⁴/₁₀-⁴⁰/₉₀ ⁸⁴/₂₀-²⁰/₉₀ ⁸⁴/₁₀-⁶⁰/₉₀ ⁸⁴/₃₀-²⁰/₉₀ ⁸⁴/₅₀-²⁰/₉₀ ⁸⁴/₇₀-²⁰/₉₀

Subtract Fractions Calculator