Answers

Subtract 90/50 from 45/56

1^st number: 45/56, 2^nd number: 1 40/50

45/56 - 90/50 is -279/280.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 50 is 1400
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1400
2. For the 1st fraction, since 56 × 25 = 1400,
   45/56 = 45 × 25/56 × 25 = 1125/1400
3. Likewise, for the 2nd fraction, since 50 × 28 = 1400,
   90/50 = 90 × 28/50 × 28 = 2520/1400
4. Subtract the two like fractions:
   1125/1400 - 2520/1400 = 1125 - 2520/1400 = -1395/1400
5. After reducing the fraction, the answer is -279/280

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