Answers

Subtract 64/6 from 28/21

1^st number: 1 7/21, 2^nd number: 10 4/6

28/21 - 64/6 is -28/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 6 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 21 × 2 = 42,
   28/21 = 28 × 2/21 × 2 = 56/42
3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
   64/6 = 64 × 7/6 × 7 = 448/42
4. Subtract the two like fractions:
   56/42 - 448/42 = 56 - 448/42 = -392/42
5. After reducing the fraction, the answer is -28/3

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