Answers

Subtract 54/45 from 72/7

1^st number: 10 2/7, 2^nd number: 1 9/45

72/7 - 54/45 is 318/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 7 × 45 = 315,
   72/7 = 72 × 45/7 × 45 = 3240/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   54/45 = 54 × 7/45 × 7 = 378/315
4. Subtract the two like fractions:
   3240/315 - 378/315 = 3240 - 378/315 = 2862/315
5. After reducing the fraction, the answer is 318/35
6. In mixed form: 93/35

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