Answers

Add 90/27 and 45/56

1^st number: 3 9/27, 2^nd number: 45/56

90/27 + 45/56 is 695/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 56 is 1512
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1512
2. For the 1st fraction, since 27 × 56 = 1512,
   90/27 = 90 × 56/27 × 56 = 5040/1512
3. Likewise, for the 2nd fraction, since 56 × 27 = 1512,
   45/56 = 45 × 27/56 × 27 = 1215/1512
4. Add the two like fractions:
   5040/1512 + 1215/1512 = 5040 + 1215/1512 = 6255/1512
5. 6255/1512 simplified gives 695/168
6. So, 90/27 + 45/56 = 695/168
   In mixed form: 423/168

MathStep (Works offline)

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

Related: ⁹⁰/₂₇+⁹⁰/₅₆ ⁹⁰/₅₄+⁴⁵/₅₆ ⁹⁰/₈₁+⁴⁵/₅₆

Add Fractions Calculator