Answers

Subtract 84/72 from 2/28

1^st number: 2/28, 2^nd number: 1 12/72

2/28 - 84/72 is -23/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 28 × 18 = 504,
   2/28 = 2 × 18/28 × 18 = 36/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   84/72 = 84 × 7/72 × 7 = 588/504
4. Subtract the two like fractions:
   36/504 - 588/504 = 36 - 588/504 = -552/504
5. After reducing the fraction, the answer is -23/21

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