Answers

Subtract 90/27 from 63/5

1^st number: 12 3/5, 2^nd number: 3 9/27

63/5 - 90/27 is 139/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 27 is 135
   
   Next, find the equivalent fraction of both fractional numbers with denominator 135
2. For the 1st fraction, since 5 × 27 = 135,
   63/5 = 63 × 27/5 × 27 = 1701/135
3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
   90/27 = 90 × 5/27 × 5 = 450/135
4. Subtract the two like fractions:
   1701/135 - 450/135 = 1701 - 450/135 = 1251/135
5. After reducing the fraction, the answer is 139/15
6. In mixed form: 94/15

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