Answers

Subtract 63/21 from 2/3

1^st number: 2/3, 2^nd number: 3 0/21

2/3 - 63/21 is -7/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 21 is 21
   
   Next, find the equivalent fraction of both fractional numbers with denominator 21
2. For the 1st fraction, since 3 × 7 = 21,
   2/3 = 2 × 7/3 × 7 = 14/21
3. Likewise, for the 2nd fraction, since 21 × 1 = 21,
   63/21 = 63 × 1/21 × 1 = 63/21
4. Subtract the two like fractions:
   14/21 - 63/21 = 14 - 63/21 = -49/21
5. After reducing the fraction, the answer is -7/3

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