solve for y: y - 5/8 = 1/8

6/8 but it can be reduced to 3/4

When do you change mixed numbers into improper fractions?

Always! When adding/subtracting AND when multiplying!

What do you do when you divide fractions?

change to multiply and flip 2nd fraction

When making common denominators, how do you change the top number?

multiply by the same number that you need to on the bottom

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Solving One-Step Equations with Decimals and Fractions

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Solving one step equations with decimals and fractions

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Questions 15

Answers

1
What would be the first step in solving this equation? x + 3.2 = 5.85
add 3.2 to both sides
change the decimals to fractions
divide both sides by 3.2
subtract 3.2 on both sides
2
Solve for x: x + 1/7 = -3/7
none of these
-4/7
2/7
3/7
3
solve for x: -5x = -1.5
0.75
0.3
-0.3
none of these
4
solve for y: y - 5/8 = 1/8
4/8 reduced to 1/2
none of these
6/8 but it can be reduced to 3/4
-5/8
5
When do you change mixed numbers into improper fractions?
Only when multiplying
Never! Why would you want to do that?
Always! When adding/subtracting AND when multiplying!
In the answer only
6
What would be the SECOND step in solving this equation? x - 6.14 = 8.9
change the decimals into fractions
line up the decimals
move the decimals
count the decimals
7
What would be the first step in solving this equation? x - 6.14 = 8.9
add 8.9
subtract 6.14
add 6.14
change decimals into fractions
8
What do you do when you divide fractions?
make common denominators
change to multiply and flip 2nd fraction
change them into decimals
change to multiply and flip 1st fraction
9
What is the common denominator in this equation? 5/8 - 1/16 =
none of these
4
8
16
10
solve for x: 3/4x = 1/5
-3/20
none of these
4/15
3/20
11
What is the opposite of adding a negative?
dividing
subtracting
multiplying
adding
12
What does x equal in this equation? x - 6.14 = 8.9
15.04
2.84
12.04
0
13
What is the answer? 3/4 ÷ 7/9
27/36 ÷ 28/36
3/4 × 7/9 = 21/36
3/4 × 9/7 = 27/28
same as answer 1 but reduced to 7/12
14
What is the opposite of adding?
subtracting a negative
subtracting
dividing
multiplying
15
When making common denominators, how do you change the top number?
common denominators are NEVER needed!
add the same number that you need to on the bottom
multiply by the same number that you need to on the bottom
you NEVER change the top number

Solving One-Step Equations with Decimals and Fractions Flashcards | StudBud