To read a 50th inch ruler, first identify the smallest unit of measurement, which is typically the smallest mark between the inches. Each inch is divided into 50 equal parts, so each mark represents 1/50th of an inch. Count the number of marks from the 0 inch mark to your desired measurement. For precision, ensure you align the object accurately with the ruler for an accurate reading.
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You look at the markings on its edge.
To read 4.875 inches on a ruler, first locate the 4-inch mark. Then, move to the next mark, which is the 5-inch mark, and divide the space between these two marks into tenths. Count 7/8 of the way from the 4-inch mark, which is 0.875 inches, placing you at the 4.875-inch mark.
Five eighths of an inch on a ruler would be located between the half-inch mark and the three-quarter inch mark.
you read a ruler by conting the little lines first
where is .39 on a ruler