Answers

Subtract 16/18 from 63/20

1^st number: 3 3/20, 2^nd number: 16/18

63/20 - 16/18 is 407/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 18 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 18 × 10 = 180,
   16/18 = 16 × 10/18 × 10 = 160/180
4. Subtract the two like fractions:
   567/180 - 160/180 = 567 - 160/180 = 407/180
5. In mixed form: 247/180

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