Sue has 4 ounces of wood. the lengths of her prices of wood are 1/3 foot 2/5 foot 3/10 foot and 1/4 foot. which piece of wood is the shortest.

1/4 is the shortest piece of wood.

The common denominator for all the fractions is 60.

Multiply the numerator by how many times the denominator goes into 60.

The fractions turn into 1/3 = 20/60, 2/5 = 24/60, 3/10 = 18/60, 1/4 = 15/60

15 is the smallest number, so 15/60 is the smallest piece.