Answers

Subtract 70/81 from 72/27

1^st number: 2 18/27, 2^nd number: 70/81

72/27 - 70/81 is 146/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 81 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 27 × 3 = 81,
   72/27 = 72 × 3/27 × 3 = 216/81
3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
   70/81 = 70 × 1/81 × 1 = 70/81
4. Subtract the two like fractions:
   216/81 - 70/81 = 216 - 70/81 = 146/81
5. In mixed form: 165/81

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