Answers

Subtract 21/9 from 2/72

1^st number: 2/72, 2^nd number: 2 3/9

2/72 - 21/9 is -83/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 9 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   2/72 = 2 × 1/72 × 1 = 2/72
3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
   21/9 = 21 × 8/9 × 8 = 168/72
4. Subtract the two like fractions:
   2/72 - 168/72 = 2 - 168/72 = -166/72
5. After reducing the fraction, the answer is -83/36

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