Answers

Add 42/15 and 63/64

1^st number: 2 12/15, 2^nd number: 63/64

42/15 + 63/64 is 1211/320.

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,
   42/15 = 42 × 64/15 × 64 = 2688/960
3. Likewise, for the 2nd fraction, since 64 × 15 = 960,
   63/64 = 63 × 15/64 × 15 = 945/960
4. Add the two like fractions:
   2688/960 + 945/960 = 2688 + 945/960 = 3633/960
5. 3633/960 simplified gives 1211/320
6. So, 42/15 + 63/64 = 1211/320
   In mixed form: 3251/320

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