Answers

Subtract 90/35 from 63/27

1^st number: 2 9/27, 2^nd number: 2 20/35

63/27 - 90/35 is -5/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 35 is 945
   
   Next, find the equivalent fraction of both fractional numbers with denominator 945
2. For the 1st fraction, since 27 × 35 = 945,
   63/27 = 63 × 35/27 × 35 = 2205/945
3. Likewise, for the 2nd fraction, since 35 × 27 = 945,
   90/35 = 90 × 27/35 × 27 = 2430/945
4. Subtract the two like fractions:
   2205/945 - 2430/945 = 2205 - 2430/945 = -225/945
5. After reducing the fraction, the answer is -5/21

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