Answers

Add 5/64 and 90/72

1^st number: 5/64, 2^nd number: 1 18/72

5/64 + 90/72 is 85/64.

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,
   5/64 = 5 × 9/64 × 9 = 45/576
3. Likewise, for the 2nd fraction, since 72 × 8 = 576,
   90/72 = 90 × 8/72 × 8 = 720/576
4. Add the two like fractions:
   45/576 + 720/576 = 45 + 720/576 = 765/576
5. 765/576 simplified gives 85/64
6. So, 5/64 + 90/72 = 85/64
   In mixed form: 121/64

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