Answers

Add 75/72 and 80/9

1^st number: 1 3/72, 2^nd number: 8 8/9

75/72 + 80/9 is 715/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 9 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   75/72 = 75 × 1/72 × 1 = 75/72
3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
   80/9 = 80 × 8/9 × 8 = 640/72
4. Add the two like fractions:
   75/72 + 640/72 = 75 + 640/72 = 715/72
5. So, 75/72 + 80/9 = 715/72
   In mixed form: 967/72

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