Answers

Subtract 70/27 from 9/20

1^st number: 9/20, 2^nd number: 2 16/27

9/20 - 70/27 is -1157/540.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 27 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   9/20 = 9 × 27/20 × 27 = 243/540
3. Likewise, for the 2nd fraction, since 27 × 20 = 540,
   70/27 = 70 × 20/27 × 20 = 1400/540
4. Subtract the two like fractions:
   243/540 - 1400/540 = 243 - 1400/540 = -1157/540

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