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Q1W7

This document discusses how to convert rational numbers between fraction and decimal form. It provides steps for converting fractions to decimals by dividing the numerator by the denominator. It also gives the process for converting decimals to fractions by using the place value of the decimal as the denominator and the decimal number as the numerator. The document then covers operations on rational numbers in both fraction and decimal form, including addition, subtraction, multiplication, and division. It provides examples for performing each operation type on fractions and decimals.

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Catalina Ayala
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139 views26 pages

Q1W7

This document discusses how to convert rational numbers between fraction and decimal form. It provides steps for converting fractions to decimals by dividing the numerator by the denominator. It also gives the process for converting decimals to fractions by using the place value of the decimal as the denominator and the decimal number as the numerator. The document then covers operations on rational numbers in both fraction and decimal form, including addition, subtraction, multiplication, and division. It provides examples for performing each operation type on fractions and decimals.

Uploaded by

Catalina Ayala
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
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Expressing Rational

Numbers from
Fraction Form to
Decimal Form and
Vice-versa
Fraction
FRACTION TO DECIMAL
Divide the numerator by denominator.

= 0.333
= 0.571
Express each Fraction in Decimal form. Round
off your answers into thousandths place.
DECIMAL TO FRACTION
1. Find the place value of the last digit.
2. Use the place value as the
denominator.
3. Copy the decimal number as the
numerator.
4. Simplify by dividing the GCF to the
fraction (if necessary).
Place Value
DECIMAL TO FRACTION

0.82
Copy decimal digits

Place value of last digit: hundredths

÷
Simplify by dividing the GCF
DECIMAL TO FRACTION

0.25 =
2.35 = or 2
Express each Decimal number in Fraction in
lowest terms or a mixed number in simple
form.
1. 0.15
2. 0.225
3. 2.33
4. 9.08
5. 4.404
Operations on
Rational
Numbers
(Fractions)
ADDITION AND SUBTRACTION OF FRACTION

• Similar Fractions:
1. Add or Subtract the
numerator
2. Copy the common
denominator
3. Simplify if necessary
Dissimilar Fractions:
1. Get the LCD
LCD of 5 and 4 is
20
2. Divide the LCD by
= the denominator
then multiply it
20 ÷ 4 = 5 * 1 = 5
20 ÷ 5 = 4 * 2 = 8
with the
numerator
3. Follow the steps of
Similar Fractions
Perform the indicated operations and express
your answer in simplest form.
1. 4. -
2. 5.
3.
MULTIPLICATION OF FRACTION

1. Multiply numerator by numerator


2. Multiply denominator by
denominator
3. Simplify by dividing the GCF to the
fraction (if necessary)
MULTIPLICATION OF FRACTION

=9
DIVISION OF FRACTION
1. Reciprocate the
divisor
2. Change the
operation to
multiplication
3. Simplify if
necessary
Perform the indicated operations and express
your answer in simplest form.
1. 4.
2. 5.
3.
Operations on
Rational
Numbers
(Decimals)
ADDITION AND SUBTRACTION OF DECIMAL
Add: 0.005 + 9.684
0.005 Align
+ 9.684 Perform
9.689 Affix Decimal
Point
ADDITION AND SUBTRACTION OF DECIMAL
Subtract: 37.428 – 10.634
37.428 Align
- 10.634 Perform
26.794 Affix Decimal
Point
Perform the indicated operation.
1. 12.7 + 5.62
2. 41.5 + 725.4
3. 654.1 + 32.95
4. 141.5 – 101.5
5. 35.33 – 7.58
MULTIPLICATION OF DECIMAL

Multiply 321.4 by 0.31


321.4 Arrange
x 0.31
3214
Perform
9642 Count and Copy
99.634 Decimal Places
DIVISION OF DECIMAL
Divide 12.159 by 3

Arrange
Perform
Affix Decimal
Point
Perform the indicated operation.
1. 29103 • 1.33
2. 8721.231 • 5.2
3. 34.625 ÷ 5
4. 80.96 ÷ 2.3
Written Activity
A. Express each decimal to fraction form or vice
versa.
1. 0.4
2. 0.96

B. Perform the indicated operation.


1. 1.85 + 0.86
2. 7982 ÷ 1.3
3.
4.
5.
6.
7. Jazz sold sack of sayote and sack of kamote. How
many sacks of vegetable did he sell altogether?

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