Answers

Add 70/15 and 27/64

1^st number: 4 10/15, 2^nd number: 27/64

70/15 + 27/64 is 977/192.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 64 is 960
   
   Next, find the equivalent fraction of both fractional numbers with denominator 960
2. For the 1st fraction, since 15 × 64 = 960,
   70/15 = 70 × 64/15 × 64 = 4480/960
3. Likewise, for the 2nd fraction, since 64 × 15 = 960,
   27/64 = 27 × 15/64 × 15 = 405/960
4. Add the two like fractions:
   4480/960 + 405/960 = 4480 + 405/960 = 4885/960
5. 4885/960 simplified gives 977/192
6. So, 70/15 + 27/64 = 977/192
   In mixed form: 517/192

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