Answers

Subtract 90/5 from 90/16

1^st number: 5 10/16, 2^nd number: 18 0/5

90/16 - 90/5 is -99/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 5 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 16 × 5 = 80,
   90/16 = 90 × 5/16 × 5 = 450/80
3. Likewise, for the 2nd fraction, since 5 × 16 = 80,
   90/5 = 90 × 16/5 × 16 = 1440/80
4. Subtract the two like fractions:
   450/80 - 1440/80 = 450 - 1440/80 = -990/80
5. After reducing the fraction, the answer is -99/8

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