Answers

Add 90/60 and 20/64

1^st number: 1 30/60, 2^nd number: 20/64

90/60 + 20/64 is 29/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 64 is 960
   
   Next, find the equivalent fraction of both fractional numbers with denominator 960
2. For the 1st fraction, since 60 × 16 = 960,
   90/60 = 90 × 16/60 × 16 = 1440/960
3. Likewise, for the 2nd fraction, since 64 × 15 = 960,
   20/64 = 20 × 15/64 × 15 = 300/960
4. Add the two like fractions:
   1440/960 + 300/960 = 1440 + 300/960 = 1740/960
5. 1740/960 simplified gives 29/16
6. So, 90/60 + 20/64 = 29/16
   In mixed form: 113/16

MathStep (Works offline)

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

Related: ⁹⁰/₆₀+⁴⁰/₆₄ ⁹⁰/₆₀+⁶⁰/₆₄

Add Fractions Calculator