Answers

Add 84/70 and 18/64

1^st number: 1 14/70, 2^nd number: 18/64

84/70 + 18/64 is 237/160.

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,
   18/64 = 18 × 35/64 × 35 = 630/2240
4. Add the two like fractions:
   2688/2240 + 630/2240 = 2688 + 630/2240 = 3318/2240
5. 3318/2240 simplified gives 237/160
6. So, 84/70 + 18/64 = 237/160
   In mixed form: 177/160

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