Answers

Add 12/90 and 75/64

1^st number: 12/90, 2^nd number: 1 11/64

12/90 + 75/64 is 1253/960.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 64 is 2880
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2880
2. For the 1st fraction, since 90 × 32 = 2880,
   12/90 = 12 × 32/90 × 32 = 384/2880
3. Likewise, for the 2nd fraction, since 64 × 45 = 2880,
   75/64 = 75 × 45/64 × 45 = 3375/2880
4. Add the two like fractions:
   384/2880 + 3375/2880 = 384 + 3375/2880 = 3759/2880
5. 3759/2880 simplified gives 1253/960
6. So, 12/90 + 75/64 = 1253/960
   In mixed form: 1293/960

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