Answers

Subtract 7/21 from 10/9

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

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

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,
   10/9 = 10 × 7/9 × 7 = 70/63
3. Likewise, for the 2nd fraction, since 21 × 3 = 63,
   7/21 = 7 × 3/21 × 3 = 21/63
4. Subtract the two like fractions:
   70/63 - 21/63 = 70 - 21/63 = 49/63
5. After reducing the fraction, the answer is 7/9

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