English System (Ruler)

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Presentation transcript:

English System (Ruler)

Conversions… (English  Metric) Fraction = ¼ inches ** divide top number into bottom to get decimal 1 / 4 = .25 in Decimal = .25 in ** to get metric, multiply decimal by 25.4mm .25 in * 25.4mm = 6.35 mm 1 1 in Metric = 6 mm

Let’s practice (English System)

Let’s practice (English System)

Let’s practice (English System)

Conversions… (Metric  English) Metric = 4 mm ** divide metric # by 25.4 mm to get decimal 4 mm * 1 in = .1575 in 1 25.4 mm Decimal = .1575 in ** to get fraction, put decimal in fraction form over 1. Then, multiply both top & bottom by 16. Round numerator. .1575 in * 16 = 2.52 in = 3 in 1 16 16 16 Fraction = 3 in 16

Let’s practice….

Let’s practice….

Let’s practice….