Answers

Subtract 64/90 from 15/50

15/50 - 64/90 is -37/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 50 × 9 = 450,
   15/50 = 15 × 9/50 × 9 = 135/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   64/90 = 64 × 5/90 × 5 = 320/450
4. Subtract the two like fractions:
   135/450 - 320/450 = 135 - 320/450 = -185/450
5. After reducing the fraction, the answer is -37/90

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