Answers

Add 75/8 and 81/72

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

75/8 + 81/72 is 21/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 8 × 9 = 72,
   75/8 = 75 × 9/8 × 9 = 675/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   81/72 = 81 × 1/72 × 1 = 81/72
4. Add the two like fractions:
   675/72 + 81/72 = 675 + 81/72 = 756/72
5. 756/72 simplified gives 21/2
6. So, 75/8 + 81/72 = 21/2
   In mixed form: 101/2

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