Answers

Subtract 90/15 from 9/4

1^st number: 2 1/4, 2^nd number: 6 0/15

9/4 - 90/15 is -15/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 15 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 4 × 15 = 60,
   9/4 = 9 × 15/4 × 15 = 135/60
3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
   90/15 = 90 × 4/15 × 4 = 360/60
4. Subtract the two like fractions:
   135/60 - 360/60 = 135 - 360/60 = -225/60
5. After reducing the fraction, the answer is -15/4

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