Answers

Subtract 72/7 from 45/5

1^st number: 9 0/5, 2^nd number: 10 2/7

45/5 - 72/7 is -9/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 7 is 35
   
   Next, find the equivalent fraction of both fractional numbers with denominator 35
2. For the 1st fraction, since 5 × 7 = 35,
   45/5 = 45 × 7/5 × 7 = 315/35
3. Likewise, for the 2nd fraction, since 7 × 5 = 35,
   72/7 = 72 × 5/7 × 5 = 360/35
4. Subtract the two like fractions:
   315/35 - 360/35 = 315 - 360/35 = -45/35
5. After reducing the fraction, the answer is -9/7

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