Answers

Add 70/42 and 9/64

1^st number: 1 28/42, 2^nd number: 9/64

70/42 + 9/64 is 347/192.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 64 is 1344
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1344
2. For the 1st fraction, since 42 × 32 = 1344,
   70/42 = 70 × 32/42 × 32 = 2240/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   9/64 = 9 × 21/64 × 21 = 189/1344
4. Add the two like fractions:
   2240/1344 + 189/1344 = 2240 + 189/1344 = 2429/1344
5. 2429/1344 simplified gives 347/192
6. So, 70/42 + 9/64 = 347/192
   In mixed form: 1155/192

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