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3.1 Rational numbers Flashcards | StudBud
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3.1 Rational numbers
3.1 Rational numbers
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Converting fractions to decimals
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
Convert 3/4 to a decimal
0.75
0.075
3.4
0.34
2
Mixed numbers can be converted to decimals.
false
true
3
If the denominator of a fraction can be easily changed to 10 or 100, you may
use subtraction to convert to a decimal
add the denominators and the numerators.
write a letter to Santa.
use multiplication to convert to a decimal.
4
Which decimal is equal to 4/10?
0.004
10.4
0.04
0.4
5
The prime factorization of the denominator will show you if a decimal will repeat or terminate.
True
False
6
Why will 4/9 repeat?
It has a prime denominator.
It has a 3 in the prime factorization.
It has a composite denominator.
It has only 2 and/or 5 in the prime factorization.
7
There are how many ways to convert a fraction to a decimal?
2
3
4
1
8
Rational numbers will, as decimals,
not repeat or terminate.
repeat or terminate.
9
Convert 3/7 to a decimal
0.428571...
0.428571
none of these
0.528571...
10
Which decimal is equal to 4/1000?
10.4
0.004
0.04
0.4
11
You notice that a fraction has a denominator of 0. You know this is
a terminating decimal.
equal to 0.
a repeating decimal.
undefined.
12
Will 3/10 repeat or terminate?
terminate
repeat
13
Convert 3/5 to a decimal.
0.35
0.6
3.5
0.6...
14
Which decimal is equal to 4/100?
0.04
0.4
10.4
0.004
15
Will 4/9 repeat or terminate?
repeat
terminate
16
You always must divide to convert a fraction to a decimal.
false
true
17
Convert 2/9 to a decimal
2.9
0.2
0.2...
0.29
18
You notice that the denominator of a certain fraction is prime. You know the decimal will
repeat
be larger than one.
terminate
be > 0.
19
Why will 3/10 terminate?
It has a composite denominator.
It has a 3 in the prime factorization.
It has only 2 and/or 5 in the prime factorization.
It has a prime denominator.
20
Convert 1/2 to a decimal.
0.2...
0.5
1.2
0.12
21
Rational numbers are
Decimals that don't repeat or terminate.
Two integers compared by multiplication.
Your worst nightmare.
Fractions and Decimals.
