Answers

Subtract 50/90 from 28/75

28/75 - 50/90 is -41/225.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 75 × 6 = 450,
   28/75 = 28 × 6/75 × 6 = 168/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   50/90 = 50 × 5/90 × 5 = 250/450
4. Subtract the two like fractions:
   168/450 - 250/450 = 168 - 250/450 = -82/450
5. After reducing the fraction, the answer is -41/225

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