Question

4 5/1+(5 1/2-3 4/21)=

Answer 1

$9 + (5 frac{1}{2} - 3 frac{4}{21} ) = \ \ = 9 + (5 frac{21}{42} - 3 frac{8}{42} ) = \ \ = 9 + 2 frac{13}{42} = 11 frac{13}{42}$

Answer 2

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