Answers

Subtract 75/9 from 6/7

1^st number: 6/7, 2^nd number: 8 3/9

6/7 - 75/9 is -157/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 9 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 7 × 9 = 63,
   6/7 = 6 × 9/7 × 9 = 54/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   75/9 = 75 × 7/9 × 7 = 525/63
4. Subtract the two like fractions:
   54/63 - 525/63 = 54 - 525/63 = -471/63
5. After reducing the fraction, the answer is -157/21

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