Answers

Subtract 45/80 from 5/4

1^st number: 1 1/4, 2^nd number: 45/80

5/4 - 45/80 is 11/16.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 4 × 20 = 80,
   5/4 = 5 × 20/4 × 20 = 100/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   45/80 = 45 × 1/80 × 1 = 45/80
4. Subtract the two like fractions:
   100/80 - 45/80 = 100 - 45/80 = 55/80
5. After reducing the fraction, the answer is 11/16

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