LESSON 1

ADDITION, SUBTRACTION, MULTIPLICATION, AND DIVISION

OF FRACTIONS AND DECIMALS; AND CONVERSION OF

FRACTIONS TO DECIMALS AND DECIMALS TO FRACTIONS

TASK 2.

Describe the processes for converting fractions to decimals and

decimals to fractions; and for adding, subtracting, multiplying,

and dividing decimals.

CONDITIONS

Within a self-study

environment

and

given

the

subcourse

text,

without

assistance.

STANDARDS

Within two hours

REFERENCES

No supplementary references are needed for this task.

1.

Introduction

Task 1 served to discuss how to solve fractions in connection with machine

shop operations.

In task 2, the processes for converting fractions to

decimals and decimals to fractions, and the addition, subtraction,

multiplication, and division of decimals will be discussed.

2.

General

Decimal fractions are simply common fractions written in a different form.

The purpose of decimal fractions is to make work with fractions easier.

Many tools used in measuring very small dimensions are ruled off in

decimals. In shop work, fractions of 8ths, 16ths, 32nds, and 64ths of an

inch are used in making ordinary measurements. For greater

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