Answers

Subtract 40/12 from 2/28

1^st number: 2/28, 2^nd number: 3 4/12

2/28 - 40/12 is -137/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 12 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 28 × 3 = 84,
   2/28 = 2 × 3/28 × 3 = 6/84
3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
   40/12 = 40 × 7/12 × 7 = 280/84
4. Subtract the two like fractions:
   6/84 - 280/84 = 6 - 280/84 = -274/84
5. After reducing the fraction, the answer is -137/42

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