Answers

Subtract 90/30 from 54/90

1^st number: 54/90, 2^nd number: 3 0/30

54/90 - 90/30 is -12/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 30 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   54/90 = 54 × 1/90 × 1 = 54/90
3. Likewise, for the 2nd fraction, since 30 × 3 = 90,
   90/30 = 90 × 3/30 × 3 = 270/90
4. Subtract the two like fractions:
   54/90 - 270/90 = 54 - 270/90 = -216/90
5. After reducing the fraction, the answer is -12/5

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