Answers

Subtract 30/28 from 6/21

1^st number: 6/21, 2^nd number: 1 2/28

6/21 - 30/28 is -11/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 28 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   6/21 = 6 × 4/21 × 4 = 24/84
3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
   30/28 = 30 × 3/28 × 3 = 90/84
4. Subtract the two like fractions:
   24/84 - 90/84 = 24 - 90/84 = -66/84
5. After reducing the fraction, the answer is -11/14

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