Answers

Subtract 40/70 from 20/27

20/27 - 40/70 is 32/189.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 70 is 1890
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1890
2. For the 1st fraction, since 27 × 70 = 1890,
   20/27 = 20 × 70/27 × 70 = 1400/1890
3. Likewise, for the 2nd fraction, since 70 × 27 = 1890,
   40/70 = 40 × 27/70 × 27 = 1080/1890
4. Subtract the two like fractions:
   1400/1890 - 1080/1890 = 1400 - 1080/1890 = 320/1890
5. After reducing the fraction, the answer is 32/189

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