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1-1 Rational Numbers
Simplify.
1.
Write each decimal as a fraction in simplest form.
2. -0.41 3. –0.625
15 21
5 7
– 41
100
– 5 8
Bell Work
1-1 Rational Numbers
I can •Write fractions as decimals
Learning Target:
1-1 Rational Numbers
denominator numerator
To write a fraction as a decimal, divide the numerator by the denominator. You can use long division.
numeratordenominator
1-1 Rational Numbers
9 11 The pattern repeats.
1
–9
.2
2
0
.0
2
11 9
–1 8
Write the fraction as a decimal.
The fraction is equivalent to the decimal 1.2.11 9
A repeating decimal can be written with a bar over the digits that repeat. So 1.2222… = 1.2.
Writing Math
_
Try this one with me:
1-1 Rational Numbers
This is a terminating decimal.20 7
.30 5
The remainder is 0.
7 20
–07
1 0
0
0
0
.0
0–6 0
–1 0 0
Write the fraction as a decimal.
The fraction is equivalent to the decimal 0.35.7 20
Try this one with your partner:
1-1 Rational Numbers
9 15 The pattern repeats, so draw a bar over the 6 to indicate that this is a repeating decimal.
1
–9
.6
6
0
.0
6
15 9
–5 4
Write the fraction as a decimal.
The fraction is equivalent to the decimal 1.6.15 9
Try this one with your partner:
1-1 Rational Numbers
40 9 This is a terminating decimal..20 2
The remainder is 0.
9 40
–09
1 0
0
0
.0
0–8 0
– 8 02 0
0
0
5
0– 2 00
Write the fraction as a decimal.
The fraction is equivalent to the decimal 0.225.9 40
Try this one by yourself:
1-1 Rational Numbers
Do you have the learning target
mastered?
1-1 Rational Numbers
51 9
Which of the following represents the given fraction as a decimal?
A. 4.3
B. 4.6
C. 5.6
D. 6.5
1-1 Rational NumbersAssignment:
• Page 8, problems 19 – 28, 59 and 60
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