Answers

Add 90/27 and 20/60

1^st number: 3 9/27, 2^nd number: 20/60

90/27 + 20/60 is 11/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 60 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 27 × 20 = 540,
   90/27 = 90 × 20/27 × 20 = 1800/540
3. Likewise, for the 2nd fraction, since 60 × 9 = 540,
   20/60 = 20 × 9/60 × 9 = 180/540
4. Add the two like fractions:
   1800/540 + 180/540 = 1800 + 180/540 = 1980/540
5. 1980/540 simplified gives 11/3
6. So, 90/27 + 20/60 = 11/3
   In mixed form: 32/3

MathStep (Works offline)

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

Related: ⁹⁰/₂₇+⁴⁰/₆₀ ⁹⁰/₅₄+²⁰/₆₀ ⁹⁰/₈₁+²⁰/₆₀

Add Fractions Calculator