Answers

Subtract 40/21 from 18/21

1^st number: 18/21, 2^nd number: 1 19/21

18/21 - 40/21 is -22/21.

Steps for subtracting fractions

1. Subtract the two fractions:
   18/21 - 40/21 = 18 - 40/21 = -22/21

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