Answers

Subtract 96/90 from 15/28

1^st number: 15/28, 2^nd number: 1 6/90

15/28 - 96/90 is -223/420.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 90 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 28 × 45 = 1260,
   15/28 = 15 × 45/28 × 45 = 675/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   96/90 = 96 × 14/90 × 14 = 1344/1260
4. Subtract the two like fractions:
   675/1260 - 1344/1260 = 675 - 1344/1260 = -669/1260
5. After reducing the fraction, the answer is -223/420

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