Answers

Subtract 20/8 from 8/72

1^st number: 8/72, 2^nd number: 2 4/8

8/72 - 20/8 is -43/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 8 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   8/72 = 8 × 1/72 × 1 = 8/72
3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
   20/8 = 20 × 9/8 × 9 = 180/72
4. Subtract the two like fractions:
   8/72 - 180/72 = 8 - 180/72 = -172/72
5. After reducing the fraction, the answer is -43/18

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