Answers

Subtract 48/84 from 21/60

21/60 - 48/84 is -31/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 60 × 7 = 420,
   21/60 = 21 × 7/60 × 7 = 147/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   48/84 = 48 × 5/84 × 5 = 240/420
4. Subtract the two like fractions:
   147/420 - 240/420 = 147 - 240/420 = -93/420
5. After reducing the fraction, the answer is -31/140

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