Answers

Add 84/70 and 45/64

1^st number: 1 14/70, 2^nd number: 45/64

84/70 + 45/64 is 609/320.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 64 is 2240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2240
2. For the 1st fraction, since 70 × 32 = 2240,
   84/70 = 84 × 32/70 × 32 = 2688/2240
3. Likewise, for the 2nd fraction, since 64 × 35 = 2240,
   45/64 = 45 × 35/64 × 35 = 1575/2240
4. Add the two like fractions:
   2688/2240 + 1575/2240 = 2688 + 1575/2240 = 4263/2240
5. 4263/2240 simplified gives 609/320
6. So, 84/70 + 45/64 = 609/320
   In mixed form: 1289/320

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