Answers

Subtract 20/42 from 25/16

1^st number: 1 9/16, 2^nd number: 20/42

25/16 - 20/42 is 365/336.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 42 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 16 × 21 = 336,
   25/16 = 25 × 21/16 × 21 = 525/336
3. Likewise, for the 2nd fraction, since 42 × 8 = 336,
   20/42 = 20 × 8/42 × 8 = 160/336
4. Subtract the two like fractions:
   525/336 - 160/336 = 525 - 160/336 = 365/336
5. In mixed form: 129/336

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