Answers

Subtract 80/21 from 50/63

1^st number: 50/63, 2^nd number: 3 17/21

50/63 - 80/21 is -190/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 21 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 63 × 1 = 63,
   50/63 = 50 × 1/63 × 1 = 50/63
3. Likewise, for the 2nd fraction, since 21 × 3 = 63,
   80/21 = 80 × 3/21 × 3 = 240/63
4. Subtract the two like fractions:
   50/63 - 240/63 = 50 - 240/63 = -190/63

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