Answers

Subtract 8/7 from 6/9

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

6/9 - 8/7 is -10/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 7 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 9 × 7 = 63,
   6/9 = 6 × 7/9 × 7 = 42/63
3. Likewise, for the 2nd fraction, since 7 × 9 = 63,
   8/7 = 8 × 9/7 × 9 = 72/63
4. Subtract the two like fractions:
   42/63 - 72/63 = 42 - 72/63 = -30/63
5. After reducing the fraction, the answer is -10/21

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