Answers

Subtract 30/27 from 40/70

1^st number: 40/70, 2^nd number: 1 3/27

40/70 - 30/27 is -34/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 27 is 1890
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1890
2. For the 1st fraction, since 70 × 27 = 1890,
   40/70 = 40 × 27/70 × 27 = 1080/1890
3. Likewise, for the 2nd fraction, since 27 × 70 = 1890,
   30/27 = 30 × 70/27 × 70 = 2100/1890
4. Subtract the two like fractions:
   1080/1890 - 2100/1890 = 1080 - 2100/1890 = -1020/1890
5. After reducing the fraction, the answer is -34/63

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