Answers

Subtract 50/49 from 63/90

1^st number: 63/90, 2^nd number: 1 1/49

63/90 - 50/49 is -157/490.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 49 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 90 × 49 = 4410,
   63/90 = 63 × 49/90 × 49 = 3087/4410
3. Likewise, for the 2nd fraction, since 49 × 90 = 4410,
   50/49 = 50 × 90/49 × 90 = 4500/4410
4. Subtract the two like fractions:
   3087/4410 - 4500/4410 = 3087 - 4500/4410 = -1413/4410
5. After reducing the fraction, the answer is -157/490

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