Answers

Subtract 70/12 from 42/30

1^st number: 1 12/30, 2^nd number: 5 10/12

42/30 - 70/12 is -133/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 12 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 30 × 2 = 60,
   42/30 = 42 × 2/30 × 2 = 84/60
3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
   70/12 = 70 × 5/12 × 5 = 350/60
4. Subtract the two like fractions:
   84/60 - 350/60 = 84 - 350/60 = -266/60
5. After reducing the fraction, the answer is -133/30

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