Answers

Subtract 75/20 from 90/2

1^st number: 45 0/2, 2^nd number: 3 15/20

90/2 - 75/20 is 165/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 20 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 2 × 10 = 20,
   90/2 = 90 × 10/2 × 10 = 900/20
3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
   75/20 = 75 × 1/20 × 1 = 75/20
4. Subtract the two like fractions:
   900/20 - 75/20 = 900 - 75/20 = 825/20
5. After reducing the fraction, the answer is 165/4
6. In mixed form: 411/4

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