Answers

Subtract 40/56 from 12/20

12/20 - 40/56 is -4/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 56 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 20 × 14 = 280,
   12/20 = 12 × 14/20 × 14 = 168/280
3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
   40/56 = 40 × 5/56 × 5 = 200/280
4. Subtract the two like fractions:
   168/280 - 200/280 = 168 - 200/280 = -32/280
5. After reducing the fraction, the answer is -4/35

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