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Measuring Equipment
Units of Measurement
Whole Numbers (1, 2, 3)Fractions (1/8”)Decimals (0.392)Metric (1 mm)
Measuring Equipment
Fractions
A fraction is a number that expresses part of a group. Fractions are written in the form of a/b, where a and b are whole numbers, and the number b is not 0.The number a is called the numerator, and the number b is called the denominator.
Measuring Equipment
Example
The fraction 4/6 represents the shaded portion of the circle below. There are 6 pieces in the group, and 4 of them are shaded.
Measuring Equipment
Example #2
The fraction 3/8 represents the shaded portion of the circle below. There are 8 pieces in the group, and 3 of them are shaded.
Measuring Equipment
Ruler divisions
Rulers can be divided into:
Always reduce the fraction to the lowest common denominator
1/2 1/4 1/8
1/16 1/32 1/64