Answers

Add 90/80 and 45/16

1^st number: 1 10/80, 2^nd number: 2 13/16

90/80 + 45/16 is 63/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 16 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   90/80 = 90 × 1/80 × 1 = 90/80
3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
   45/16 = 45 × 5/16 × 5 = 225/80
4. Add the two like fractions:
   90/80 + 225/80 = 90 + 225/80 = 315/80
5. 315/80 simplified gives 63/16
6. So, 90/80 + 45/16 = 63/16
   In mixed form: 315/16

MathStep (Works offline)

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

Related: ⁹⁰/₈₀+⁹⁰/₁₆ ⁹⁰/₈₀+⁴⁵/₃₂ ⁹⁰/₈₀+⁴⁵/₄₈ ⁹⁰/₈₀+⁴⁵/₈₀

Add Fractions Calculator