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Machinst Math: Ratios, Proportions & Percentages

Math for machinists involves math operations of whole numbers, fractions, decimals, percentages that apply directly to machining and manufacturing. Precision measurements are important as are angles, area volume and mechanical calculations.

Unit 18

Unit 18 is about ratios

Unit 18 Ratios
1:44
Unit 18 Ratios Example 1
1:12
Unit 18 Proportions
2:08

Unit 19

Unit 19 has to do with direct and inverse proportions

Unit 19 Direct Proportions Example
2:32
Unit 19 Inverse Proportions Example 2
2.33
Unit 19 Inverse Proportions Gears
3:30

Unit 20

Unit 20 is about percentages

Unit 20 Percentages
4:11

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Machinst Math: Ratios, Proportions & Percentages

Unit 18

Unit 19

Unit 20