Answers

Subtract 40/60 from 6/21

6/21 - 40/60 is -8/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 21 × 20 = 420,
   6/21 = 6 × 20/21 × 20 = 120/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   40/60 = 40 × 7/60 × 7 = 280/420
4. Subtract the two like fractions:
   120/420 - 280/420 = 120 - 280/420 = -160/420
5. After reducing the fraction, the answer is -8/21

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