Answers

Add 90/64 and 5/72

1^st number: 1 26/64, 2^nd number: 5/72

90/64 + 5/72 is 425/288.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 72 is 576
   
   Next, find the equivalent fraction of both fractional numbers with denominator 576
2. For the 1st fraction, since 64 × 9 = 576,
   90/64 = 90 × 9/64 × 9 = 810/576
3. Likewise, for the 2nd fraction, since 72 × 8 = 576,
   5/72 = 5 × 8/72 × 8 = 40/576
4. Add the two like fractions:
   810/576 + 40/576 = 810 + 40/576 = 850/576
5. 850/576 simplified gives 425/288
6. So, 90/64 + 5/72 = 425/288
   In mixed form: 1137/288

MathStep (Works offline)

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

Related: ⁹⁰/₆₄+¹⁰/₇₂ ⁹⁰/₆₄+¹⁵/₇₂ ⁹⁰/₆₄+²⁵/₇₂ ⁹⁰/₆₄+³⁵/₇₂

Add Fractions Calculator