Answers

Subtract 81/84 from 84/30

1^st number: 2 24/30, 2^nd number: 81/84

84/30 - 81/84 is 257/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 30 × 14 = 420,
   84/30 = 84 × 14/30 × 14 = 1176/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   81/84 = 81 × 5/84 × 5 = 405/420
4. Subtract the two like fractions:
   1176/420 - 405/420 = 1176 - 405/420 = 771/420
5. After reducing the fraction, the answer is 257/140
6. In mixed form: 1117/140

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