Answers

Add 64/9 and 40/70

1^st number: 7 1/9, 2^nd number: 40/70

64/9 + 40/70 is 484/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 9 × 70 = 630,
   64/9 = 64 × 70/9 × 70 = 4480/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   40/70 = 40 × 9/70 × 9 = 360/630
4. Add the two like fractions:
   4480/630 + 360/630 = 4480 + 360/630 = 4840/630
5. 4840/630 simplified gives 484/63
6. So, 64/9 + 40/70 = 484/63
   In mixed form: 743/63

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