Answers

Subtract 30/18 from 30/90

1^st number: 30/90, 2^nd number: 1 12/18

30/90 - 30/18 is -4/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 18 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   30/90 = 30 × 1/90 × 1 = 30/90
3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
   30/18 = 30 × 5/18 × 5 = 150/90
4. Subtract the two like fractions:
   30/90 - 150/90 = 30 - 150/90 = -120/90
5. After reducing the fraction, the answer is -4/3

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