Answers

Add 72/64 and 6/15

1^st number: 1 8/64, 2^nd number: 6/15

72/64 + 6/15 is 61/40.

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,
   72/64 = 72 × 15/64 × 15 = 1080/960
3. Likewise, for the 2nd fraction, since 15 × 64 = 960,
   6/15 = 6 × 64/15 × 64 = 384/960
4. Add the two like fractions:
   1080/960 + 384/960 = 1080 + 384/960 = 1464/960
5. 1464/960 simplified gives 61/40
6. So, 72/64 + 6/15 = 61/40
   In mixed form: 121/40

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