Answers

Subtract 54/50 from 20/90

1^st number: 20/90, 2^nd number: 1 4/50

20/90 - 54/50 is -193/225.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 50 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 90 × 5 = 450,
   20/90 = 20 × 5/90 × 5 = 100/450
3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
   54/50 = 54 × 9/50 × 9 = 486/450
4. Subtract the two like fractions:
   100/450 - 486/450 = 100 - 486/450 = -386/450
5. After reducing the fraction, the answer is -193/225

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