Answers

Subtract 90/12 from 30/10

1^st number: 3 0/10, 2^nd number: 7 6/12

30/10 - 90/12 is -9/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 12 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 10 × 6 = 60,
   30/10 = 30 × 6/10 × 6 = 180/60
3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
   90/12 = 90 × 5/12 × 5 = 450/60
4. Subtract the two like fractions:
   180/60 - 450/60 = 180 - 450/60 = -270/60
5. After reducing the fraction, the answer is -9/2

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