Answers

Subtract 63/56 from 28/30

1^st number: 28/30, 2^nd number: 1 7/56

28/30 - 63/56 is -23/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 56 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 30 × 28 = 840,
   28/30 = 28 × 28/30 × 28 = 784/840
3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
   63/56 = 63 × 15/56 × 15 = 945/840
4. Subtract the two like fractions:
   784/840 - 945/840 = 784 - 945/840 = -161/840
5. After reducing the fraction, the answer is -23/120

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