Answers

Subtract 3/21 from 63/9

1^st number: 7 0/9, 2^nd number: 3/21

63/9 - 3/21 is 48/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 21 is 63
2. For the 1st fraction, since 9 × 7 = 63,
   63/9 = 63 × 7/9 × 7 = 441/63
3. Likewise, for the 2nd fraction, since 21 × 3 = 63,
   3/21 = 3 × 3/21 × 3 = 9/63
4. Subtract the two fractions:
   441/63 - 9/63 = 441 - 9/63 = 432/63
5. After reducing the fraction, the answer is 48/7
6. In mixed form: 66/7

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