Answers

Subtract 28/45 from 15/21

15/21 - 28/45 is 29/315.

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,
   15/21 = 15 × 15/21 × 15 = 225/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   28/45 = 28 × 7/45 × 7 = 196/315
4. Subtract the two like fractions:
   225/315 - 196/315 = 225 - 196/315 = 29/315

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