Answers

Subtract 50/16 from 20/42

1^st number: 20/42, 2^nd number: 3 2/16

20/42 - 50/16 is -445/168.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 16 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 42 × 8 = 336,
   20/42 = 20 × 8/42 × 8 = 160/336
3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
   50/16 = 50 × 21/16 × 21 = 1050/336
4. Subtract the two like fractions:
   160/336 - 1050/336 = 160 - 1050/336 = -890/336
5. After reducing the fraction, the answer is -445/168

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