Answers

Add 90/12 and 72/64

1^st number: 7 6/12, 2^nd number: 1 8/64

90/12 + 72/64 is 69/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 64 is 192
   
   Next, find the equivalent fraction of both fractional numbers with denominator 192
2. For the 1st fraction, since 12 × 16 = 192,
   90/12 = 90 × 16/12 × 16 = 1440/192
3. Likewise, for the 2nd fraction, since 64 × 3 = 192,
   72/64 = 72 × 3/64 × 3 = 216/192
4. Add the two like fractions:
   1440/192 + 216/192 = 1440 + 216/192 = 1656/192
5. 1656/192 simplified gives 69/8
6. So, 90/12 + 72/64 = 69/8
   In mixed form: 85/8

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