Answers

Subtract 49/50 from 21/63

21/63 - 49/50 is -97/150.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 50 is 3150
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3150
2. For the 1st fraction, since 63 × 50 = 3150,
   21/63 = 21 × 50/63 × 50 = 1050/3150
3. Likewise, for the 2nd fraction, since 50 × 63 = 3150,
   49/50 = 49 × 63/50 × 63 = 3087/3150
4. Subtract the two like fractions:
   1050/3150 - 3087/3150 = 1050 - 3087/3150 = -2037/3150
5. After reducing the fraction, the answer is -97/150

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