Answers

Add 12/64 and 70/63

1^st number: 12/64, 2^nd number: 1 7/63

12/64 + 70/63 is 187/144.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 63 is 4032
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4032
2. For the 1st fraction, since 64 × 63 = 4032,
   12/64 = 12 × 63/64 × 63 = 756/4032
3. Likewise, for the 2nd fraction, since 63 × 64 = 4032,
   70/63 = 70 × 64/63 × 64 = 4480/4032
4. Add the two like fractions:
   756/4032 + 4480/4032 = 756 + 4480/4032 = 5236/4032
5. 5236/4032 simplified gives 187/144
6. So, 12/64 + 70/63 = 187/144
   In mixed form: 143/144

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