Answers

Subtract 70/54 from 30/90

1^st number: 30/90, 2^nd number: 1 16/54

30/90 - 70/54 is -26/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 90 × 3 = 270,
   30/90 = 30 × 3/90 × 3 = 90/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   70/54 = 70 × 5/54 × 5 = 350/270
4. Subtract the two like fractions:
   90/270 - 350/270 = 90 - 350/270 = -260/270
5. After reducing the fraction, the answer is -26/27

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