Answers

Subtract 7/9 from 8/7

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

8/7 - 7/9 is 23/63.

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,
   8/7 = 8 × 9/7 × 9 = 72/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   7/9 = 7 × 7/9 × 7 = 49/63
4. Subtract the two like fractions:
   72/63 - 49/63 = 72 - 49/63 = 23/63

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