Japt, 36 33 24 bytes

HÆÐU+Xn)e
èÈ©n6Ã*L/UèÊ r

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34 31 22 bytes

2 bytes can be saved by always rounding down as the challenge doesn't specify that we must round to the nearest integer:

HÆÐU+Xn)e
èÈ©n6ÃzUèÊ/L

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Japt, 36 34 bytes

HÆÐU+XnÃf@¤¤ÅɶXÎÃme
èÈ©n6Ã*L/UÊ r

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Not pretty at all! Needs more work.

34 32 bytes

2 bytes can be saved by always rounding down as the challenge doesn't specify that we must round to the nearest integer:

HÆÐU+XnÃf@¤¤ÅɶXÎÃme
èÈ©n6ÃzUÊ/L

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Japt, 36 33 24 bytes

 HÆÐU+Xn)e
 èÈ©n6Ã*L/UèÄ)r

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34 31 23 bytes

2 bytes 1 byte can be saved by always rounding down as the challenge doesn't specify that we must round to the nearest integer:

HÆÐU+Xn)e
èÈ©n6ÃzUèÄ /L

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Japt, 36 33 24 bytes

HÆÐU+Xn)e
èÈ©n6Ã*L/UèÊ r

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34 31 22 bytes

2 bytes can be saved by always rounding down as the challenge doesn't specify that we must round to the nearest integer:

HÆÐU+Xn)e
èÈ©n6ÃzUèÊ/L

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Japt, 36 33 bytes

Not pretty at all! Needs more work.

HÆÐU+Xn㤤ÅɶXΩXe
èÈ©n6Ã*L/UÊ r

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34 31 bytes

2 bytes can be saved by always rounding down as the challenge doesn't specify that we must round to the nearest integer:

HÆÐU+Xn㤤ÅɶXΩXe
èÈ©n6ÃzUÊ/L

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Japt, 36 33 24 bytes

 HÆÐU+Xn)e
 èÈ©n6Ã*L/UèÄ)r

Try it

34 31 23 bytes

2 bytes 1 byte can be saved by always rounding down as the challenge doesn't specify that we must round to the nearest integer:

HÆÐU+Xn)e
èÈ©n6ÃzUèÄ /L

Try it