Answers

Subtract 3/75 from 20/80

20/80 - 3/75 is 21/100.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 75 is 1200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1200
2. For the 1st fraction, since 80 × 15 = 1200,
   20/80 = 20 × 15/80 × 15 = 300/1200
3. Likewise, for the 2nd fraction, since 75 × 16 = 1200,
   3/75 = 3 × 16/75 × 16 = 48/1200
4. Subtract the two like fractions:
   300/1200 - 48/1200 = 300 - 48/1200 = 252/1200
5. After reducing the fraction, the answer is 21/100

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