Answers

Subtract 45/30 from 72/56

1^st number: 1 16/56, 2^nd number: 1 15/30

72/56 - 45/30 is -3/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 30 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 56 × 15 = 840,
   72/56 = 72 × 15/56 × 15 = 1080/840
3. Likewise, for the 2nd fraction, since 30 × 28 = 840,
   45/30 = 45 × 28/30 × 28 = 1260/840
4. Subtract the two like fractions:
   1080/840 - 1260/840 = 1080 - 1260/840 = -180/840
5. After reducing the fraction, the answer is -3/14

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