Answers

Add 90/54 and 14/20

1^st number: 1 36/54, 2^nd number: 14/20

90/54 + 14/20 is 71/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 20 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 54 × 10 = 540,
   90/54 = 90 × 10/54 × 10 = 900/540
3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
   14/20 = 14 × 27/20 × 27 = 378/540
4. Add the two like fractions:
   900/540 + 378/540 = 900 + 378/540 = 1278/540
5. 1278/540 simplified gives 71/30
6. So, 90/54 + 14/20 = 71/30
   In mixed form: 211/30

MathStep (Works offline)

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

Related: ⁹⁰/₅₄+²⁸/₂₀ ⁹⁰/₅₄+¹⁴/₄₀ ⁹⁰/₅₄+⁴²/₂₀ ⁹⁰/₅₄+¹⁴/₆₀ ⁹⁰/₅₄+⁷⁰/₂₀ ⁹⁰/₅₄+⁹⁸/₂₀

Add Fractions Calculator