M A T H E M A T I C S

4

Modified In-School Off-School Approach Modules (MISOSA)

Distance Education for Elementary Schools

SELF-INSTRUCTIONAL MATERIALS

COMMON FRACTIONS AS DECIMALS

Department of Education

BUREAU OF ELEMENTARY EDUCATION 2nd Floor Bonifacio Building DepEd Complex, Meralco Avenue Pasig City

Revised 2010 by the Learning Resource Management and Development System (LRMDS),

DepEd - Division of Negros Occidental under the Strengthening the Implementation of Basic Education

in Selected Provinces in the Visayas (STRIVE).

This edition has been revised with permission for online distribution through the Learning Resource Management Development System (LRMDS) Portal (http://lrmds.deped.gov.ph/) under Project STRIVE for BESRA, a project supported by AusAID.

Section 9 of Presidential Decree No. 49 provides: No copyright shall subsist in any work of the Government of the Republic of the Philippines. However, prior approval of the government agency or office wherein the work is created shall be necessary for exploitation of such work for profit. This material was originally produced by the Bureau of Elementary Education of the Department of Education, Republic of the Philippines.

1

COMMON FRACTIONS AS DECIMALS

Objectives: Visualize common fraction as decimals. Write common fraction in decimal form.

Write the fraction and the word name of the shaded parts on your paper.

_____a. _____ b.

_____c. _____ d.

_____e.

Check your answer using the answer key. If your score is 8 to 10, you can now proceed to this module. If you get 7 correct answers or below, review first the past lesson.

Review

2

Mother baked a pan of pudding. She cut it into 10 equal parts. What part of the whole is each of the equal parts?

You can write the name of each part as . You can also write it in a

new way without changing its value. The fraction can also be written as 0.1. This number is called decimal. It is a special kind of fraction.

Two parts of the pudding can be written as 0.2; 3 parts is written as

0.3; 4 parts is written as 0.4; and so on. Notice that you find a dot at the left side of 1 (0.1), 2 (0.2), 3 (0.3), and 4 (0.4). This dot is called decimal point. The decimal point tells that the number is less than a whole or part of a whole.

The expression 0.2 is read as two-tenths .

The expression 0.3 is read as three-tenths The expression 0.4 is read as four-tenths The digits 2, 3 and 4 are found or written one place after the decimal

point. Therefore, the decimals 0.1, 0.2, 0.3 and 0.4 are called one-place decimals.

0.5 is a one place decimal. You read it as five-tenths. How will you read these one-place decimals? 0.6 0.8 0.9 0.7

101

101

101

101

101

101

101

101

101

101

101

101

102

103

104

Study and Learn

3

Write these decimals in fraction form. The first one is done for you. 0.1 = 0.4 = ____ 0.5 = ____ 0.6 = _____ 0.8 = ____

A. Express the shaded parts as fractions and as decimals.

_____ 1) _____ 2) _____ 3) _____ 4) _____ 5)

B. Write in decimal form.

_____ 1) 8 tenths _____ 4) 2 tenths _____ 2) 9 tenths _____ 5) 6 tenths _____ 3) 3 tenths How do you identify a decimal number?

A decimal number is a number with a decimal point. It tells that the number is less than a whole or part of a whole.

101

Try These

Wrap Up

4

A. Convert the shaded parts into fractions and give the decimal form.

_____ 1) _____ 2) _____ 3) _____ 4) _____ 5)

B. Give the decimal form.

_____ 1) 5 tenths _____ 4) 4 tenths _____ 2) 1 tenth _____ 5) 7 tenths _____ 3) 2 tenths

Check your answer with the answer key.

If you get 8 to 10 correct answers, you have mastered the skills in this module

and you may proceed to the next.

If you get 5 to 7 correct answers, review the processes you missed.

If you get 4 correct answers or below, repeat the whole process.

On Your Own

24 - Cover24 - COMMON FRACTIONS AS DECIMALSCOMMON FRACTIONS AS DECIMALSObjectives: Visualize common fraction as decimals.Write common fraction in decimal form.