Answers

Add 80/20 and 15/64

1^st number: 4 0/20, 2^nd number: 15/64

80/20 + 15/64 is 271/64.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 64 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 20 × 16 = 320,
   80/20 = 80 × 16/20 × 16 = 1280/320
3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
   15/64 = 15 × 5/64 × 5 = 75/320
4. Add the two like fractions:
   1280/320 + 75/320 = 1280 + 75/320 = 1355/320
5. 1355/320 simplified gives 271/64
6. So, 80/20 + 15/64 = 271/64
   In mixed form: 415/64

MathStep (Works offline)

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

Related: ⁸⁰/₂₀+³⁰/₆₄ ⁸⁰/₄₀+¹⁵/₆₄ ⁸⁰/₂₀+⁴⁵/₆₄ ⁸⁰/₆₀+¹⁵/₆₄ ⁸⁰/₂₀+⁷⁵/₆₄

Add Fractions Calculator