Answers

Subtract 20/15 from 49/54

1^st number: 49/54, 2^nd number: 1 5/15

49/54 - 20/15 is -23/54.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 15 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 54 × 5 = 270,
   49/54 = 49 × 5/54 × 5 = 245/270
3. Likewise, for the 2nd fraction, since 15 × 18 = 270,
   20/15 = 20 × 18/15 × 18 = 360/270
4. Subtract the two like fractions:
   245/270 - 360/270 = 245 - 360/270 = -115/270
5. After reducing the fraction, the answer is -23/54

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