Answers

Subtract 60/84 from 30/21

1^st number: 1 9/21, 2^nd number: 60/84

30/21 - 60/84 is 5/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   30/21 = 30 × 4/21 × 4 = 120/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   60/84 = 60 × 1/84 × 1 = 60/84
4. Subtract the two like fractions:
   120/84 - 60/84 = 120 - 60/84 = 60/84
5. After reducing the fraction, the answer is 5/7

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