Answers

Subtract 21/9 from 70/84

1^st number: 70/84, 2^nd number: 2 3/9

70/84 - 21/9 is -3/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 9 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   70/84 = 70 × 3/84 × 3 = 210/252
3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
   21/9 = 21 × 28/9 × 28 = 588/252
4. Subtract the two like fractions:
   210/252 - 588/252 = 210 - 588/252 = -378/252
5. After reducing the fraction, the answer is -3/2

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