Answers

Add 21/15 and 60/64

1^st number: 1 6/15, 2^nd number: 60/64

21/15 + 60/64 is 187/80.

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,
   21/15 = 21 × 64/15 × 64 = 1344/960
3. Likewise, for the 2nd fraction, since 64 × 15 = 960,
   60/64 = 60 × 15/64 × 15 = 900/960
4. Add the two like fractions:
   1344/960 + 900/960 = 1344 + 900/960 = 2244/960
5. 2244/960 simplified gives 187/80
6. So, 21/15 + 60/64 = 187/80
   In mixed form: 227/80

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