Answers

Add 64/5 and 70/42

1^st number: 12 4/5, 2^nd number: 1 28/42

64/5 + 70/42 is 217/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 5 × 42 = 210,
   64/5 = 64 × 42/5 × 42 = 2688/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   70/42 = 70 × 5/42 × 5 = 350/210
4. Add the two like fractions:
   2688/210 + 350/210 = 2688 + 350/210 = 3038/210
5. 3038/210 simplified gives 217/15
6. So, 64/5 + 70/42 = 217/15
   In mixed form: 147/15

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