Answers

Subtract 18/20 from 90/20

1^st number: 4 10/20, 2^nd number: 18/20

90/20 - 18/20 is 18/5.

Steps for subtracting fractions

1. Subtract the two fractions:
   90/20 - 18/20 = 90 - 18/20 = 72/20
2. After reducing the fraction, the answer is 18/5
3. In mixed form: 33/5

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