Answers

Subtract 56/21 from 16/9

1^st number: 1 7/9, 2^nd number: 2 14/21

16/9 - 56/21 is -8/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 21 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 9 × 7 = 63,
   16/9 = 16 × 7/9 × 7 = 112/63
3. Likewise, for the 2nd fraction, since 21 × 3 = 63,
   56/21 = 56 × 3/21 × 3 = 168/63
4. Subtract the two like fractions:
   112/63 - 168/63 = 112 - 168/63 = -56/63
5. After reducing the fraction, the answer is -8/9

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