Answers

Subtract 45/50 from 20/49

20/49 - 45/50 is -241/490.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 50 is 2450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2450
2. For the 1st fraction, since 49 × 50 = 2450,
   20/49 = 20 × 50/49 × 50 = 1000/2450
3. Likewise, for the 2nd fraction, since 50 × 49 = 2450,
   45/50 = 45 × 49/50 × 49 = 2205/2450
4. Subtract the two like fractions:
   1000/2450 - 2205/2450 = 1000 - 2205/2450 = -1205/2450
5. After reducing the fraction, the answer is -241/490

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