Answers

Subtract 16/9 from 63/20

1^st number: 3 3/20, 2^nd number: 1 7/9

63/20 - 16/9 is 247/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 9 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   63/20 = 63 × 9/20 × 9 = 567/180
3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
   16/9 = 16 × 20/9 × 20 = 320/180
4. Subtract the two like fractions:
   567/180 - 320/180 = 567 - 320/180 = 247/180
5. In mixed form: 167/180

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