Answers

Subtract 56/16 from 28/90

1^st number: 28/90, 2^nd number: 3 8/16

28/90 - 56/16 is -287/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 16 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 90 × 8 = 720,
   28/90 = 28 × 8/90 × 8 = 224/720
3. Likewise, for the 2nd fraction, since 16 × 45 = 720,
   56/16 = 56 × 45/16 × 45 = 2520/720
4. Subtract the two like fractions:
   224/720 - 2520/720 = 224 - 2520/720 = -2296/720
5. After reducing the fraction, the answer is -287/90

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