Answers

Subtract 7/45 from 45/21

1^st number: 2 3/21, 2^nd number: 7/45

45/21 - 7/45 is 626/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 21 × 15 = 315,
   45/21 = 45 × 15/21 × 15 = 675/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   7/45 = 7 × 7/45 × 7 = 49/315
4. Subtract the two like fractions:
   675/315 - 49/315 = 675 - 49/315 = 626/315
5. In mixed form: 1311/315

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