Answers

Add 20/27 and 84/64

1^st number: 20/27, 2^nd number: 1 20/64

20/27 + 84/64 is 887/432.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 64 is 1728
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1728
2. For the 1st fraction, since 27 × 64 = 1728,
   20/27 = 20 × 64/27 × 64 = 1280/1728
3. Likewise, for the 2nd fraction, since 64 × 27 = 1728,
   84/64 = 84 × 27/64 × 27 = 2268/1728
4. Add the two like fractions:
   1280/1728 + 2268/1728 = 1280 + 2268/1728 = 3548/1728
5. 3548/1728 simplified gives 887/432
6. So, 20/27 + 84/64 = 887/432
   In mixed form: 223/432

MathStep (Works offline)

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

Related: ⁴⁰/₂₇+⁸⁴/₆₄ ²⁰/₅₄+⁸⁴/₆₄ ⁶⁰/₂₇+⁸⁴/₆₄ ²⁰/₈₁+⁸⁴/₆₄

Add Fractions Calculator