Answers

Add 84/64 and 9/30

1^st number: 1 20/64, 2^nd number: 9/30

84/64 + 9/30 is 129/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 30 is 960
   
   Next, find the equivalent fraction of both fractional numbers with denominator 960
2. For the 1st fraction, since 64 × 15 = 960,
   84/64 = 84 × 15/64 × 15 = 1260/960
3. Likewise, for the 2nd fraction, since 30 × 32 = 960,
   9/30 = 9 × 32/30 × 32 = 288/960
4. Add the two like fractions:
   1260/960 + 288/960 = 1260 + 288/960 = 1548/960
5. 1548/960 simplified gives 129/80
6. So, 84/64 + 9/30 = 129/80
   In mixed form: 149/80

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