Answers

Subtract 9/50 from 4/90

4/90 - 9/50 is -61/450.

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,
   4/90 = 4 × 5/90 × 5 = 20/450
3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
   9/50 = 9 × 9/50 × 9 = 81/450
4. Subtract the two like fractions:
   20/450 - 81/450 = 20 - 81/450 = -61/450

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