Answers

Subtract 18/80 from 18/20

18/20 - 18/80 is 27/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 20 × 4 = 80,
   18/20 = 18 × 4/20 × 4 = 72/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   18/80 = 18 × 1/80 × 1 = 18/80
4. Subtract the two like fractions:
   72/80 - 18/80 = 72 - 18/80 = 54/80
5. After reducing the fraction, the answer is 27/40

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