Answers

Subtract 96/90 from 42/12

1^st number: 3 6/12, 2^nd number: 1 6/90

42/12 - 96/90 is 73/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 12 × 15 = 180,
   42/12 = 42 × 15/12 × 15 = 630/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   96/90 = 96 × 2/90 × 2 = 192/180
4. Subtract the two like fractions:
   630/180 - 192/180 = 630 - 192/180 = 438/180
5. After reducing the fraction, the answer is 73/30
6. In mixed form: 213/30

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