Answers

Add 90/72 and 27/64

1^st number: 1 18/72, 2^nd number: 27/64

90/72 + 27/64 is 107/64.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 64 is 576
   
   Next, find the equivalent fraction of both fractional numbers with denominator 576
2. For the 1st fraction, since 72 × 8 = 576,
   90/72 = 90 × 8/72 × 8 = 720/576
3. Likewise, for the 2nd fraction, since 64 × 9 = 576,
   27/64 = 27 × 9/64 × 9 = 243/576
4. Add the two like fractions:
   720/576 + 243/576 = 720 + 243/576 = 963/576
5. 963/576 simplified gives 107/64
6. So, 90/72 + 27/64 = 107/64
   In mixed form: 143/64

MathStep (Works offline)

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

Related: ⁹⁰/₇₂+⁵⁴/₆₄ ⁹⁰/₇₂+⁸¹/₆₄

Add Fractions Calculator