Answers

Add 98/64 and 18/15

1^st number: 1 34/64, 2^nd number: 1 3/15

98/64 + 18/15 is 437/160.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 15 is 960
   
   Next, find the equivalent fraction of both fractional numbers with denominator 960
2. For the 1st fraction, since 64 × 15 = 960,
   98/64 = 98 × 15/64 × 15 = 1470/960
3. Likewise, for the 2nd fraction, since 15 × 64 = 960,
   18/15 = 18 × 64/15 × 64 = 1152/960
4. Add the two like fractions:
   1470/960 + 1152/960 = 1470 + 1152/960 = 2622/960
5. 2622/960 simplified gives 437/160
6. So, 98/64 + 18/15 = 437/160
   In mixed form: 2117/160

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