Answers

Subtract 9/18 from 9/72

9/72 - 9/18 is -3/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 18 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   9/72 = 9 × 1/72 × 1 = 9/72
3. Likewise, for the 2nd fraction, since 18 × 4 = 72,
   9/18 = 9 × 4/18 × 4 = 36/72
4. Subtract the two like fractions:
   9/72 - 36/72 = 9 - 36/72 = -27/72
5. After reducing the fraction, the answer is -3/8

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