Answers

Subtract 70/27 from 20/18

1^st number: 1 2/18, 2^nd number: 2 16/27

20/18 - 70/27 is -40/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 27 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 18 × 3 = 54,
   20/18 = 20 × 3/18 × 3 = 60/54
3. Likewise, for the 2nd fraction, since 27 × 2 = 54,
   70/27 = 70 × 2/27 × 2 = 140/54
4. Subtract the two like fractions:
   60/54 - 140/54 = 60 - 140/54 = -80/54
5. After reducing the fraction, the answer is -40/27

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