Answers

Subtract 25/20 from 1/80

1^st number: 1/80, 2^nd number: 1 5/20

1/80 - 25/20 is -99/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 20 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   1/80 = 1 × 1/80 × 1 = 1/80
3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
   25/20 = 25 × 4/20 × 4 = 100/80
4. Subtract the two like fractions:
   1/80 - 100/80 = 1 - 100/80 = -99/80

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