Answers

Add 18/72 and 75/27

1^st number: 18/72, 2^nd number: 2 21/27

18/72 + 75/27 is 109/36.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 27 is 216
   
   Next, find the equivalent fraction of both fractional numbers with denominator 216
2. For the 1st fraction, since 72 × 3 = 216,
   18/72 = 18 × 3/72 × 3 = 54/216
3. Likewise, for the 2nd fraction, since 27 × 8 = 216,
   75/27 = 75 × 8/27 × 8 = 600/216
4. Add the two like fractions:
   54/216 + 600/216 = 54 + 600/216 = 654/216
5. 654/216 simplified gives 109/36
6. So, 18/72 + 75/27 = 109/36
   In mixed form: 31/36

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