Answers

Subtract 45/54 from 20/15

1^st number: 1 5/15, 2^nd number: 45/54

20/15 - 45/54 is 1/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 15 × 18 = 270,
   20/15 = 20 × 18/15 × 18 = 360/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   45/54 = 45 × 5/54 × 5 = 225/270
4. Subtract the two like fractions:
   360/270 - 225/270 = 360 - 225/270 = 135/270
5. After reducing the fraction, the answer is 1/2

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