Answers

Subtract 45/90 from 84/4

1^st number: 21 0/4, 2^nd number: 45/90

84/4 - 45/90 is 41/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 4 × 45 = 180,
   84/4 = 84 × 45/4 × 45 = 3780/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   45/90 = 45 × 2/90 × 2 = 90/180
4. Subtract the two like fractions:
   3780/180 - 90/180 = 3780 - 90/180 = 3690/180
5. After reducing the fraction, the answer is 41/2
6. In mixed form: 201/2

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