Answers

Add 70/21 and 9/64

1^st number: 3 7/21, 2^nd number: 9/64

70/21 + 9/64 is 667/192.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 64 is 1344
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1344
2. For the 1st fraction, since 21 × 64 = 1344,
   70/21 = 70 × 64/21 × 64 = 4480/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   9/64 = 9 × 21/64 × 21 = 189/1344
4. Add the two like fractions:
   4480/1344 + 189/1344 = 4480 + 189/1344 = 4669/1344
5. 4669/1344 simplified gives 667/192
6. So, 70/21 + 9/64 = 667/192
   In mixed form: 391/192

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