6and 1 over 6 subtract 1 and 3 over 4

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

Asap its important using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feetwidth: feet