Answers

Subtract 28/27 from 7/70

1^st number: 7/70, 2^nd number: 1 1/27

7/70 - 28/27 is -253/270.

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,
   7/70 = 7 × 27/70 × 27 = 189/1890
3. Likewise, for the 2nd fraction, since 27 × 70 = 1890,
   28/27 = 28 × 70/27 × 70 = 1960/1890
4. Subtract the two like fractions:
   189/1890 - 1960/1890 = 189 - 1960/1890 = -1771/1890
5. After reducing the fraction, the answer is -253/270

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