Answers

Subtract 30/54 from 72/45

1^st number: 1 27/45, 2^nd number: 30/54

72/45 - 30/54 is 47/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 45 × 6 = 270,
   72/45 = 72 × 6/45 × 6 = 432/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   30/54 = 30 × 5/54 × 5 = 150/270
4. Subtract the two like fractions:
   432/270 - 150/270 = 432 - 150/270 = 282/270
5. After reducing the fraction, the answer is 47/45
6. In mixed form: 12/45

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