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Civil Service Exam Prep Questions And Answers 100% Verified.
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Civil Service Exam Prep Questions AndAnswers 100% Verified.
Numerator .- .correct .answer. . . . .The .whole .number .that .appears .on .the .top .of .a .fraction. .
?/D
Denominator .- .correct .answer. . . . .The .number .that .appears .on .the .bottom .of .the .fraction. .
N/?
Proper .fraction .- .correct .answer. . . . .The .numerator .is .smaller .than .the .denominator. .
Ex. .1/2
Improper .fraction .- .correct .answer. . . . .The .numerator .is .larger .than .the .denominator.
Ex. .2/1
Mixed .numbers .- .correct .answer. . . . .A .mixed .number .consists .of .a .whole .number .and .a
.proper .fraction. .A .improper .fraction .can .be .written .into .a .mixed .number.
How .do .you .convert .an .improper .fraction .into .a .mixed .number? .- .correct .answer. . . . .1.
.Divide .the .numerator .by .the .denominator. .The .result .will .be .a .whole .number, .with .or
.without .a .remainder.
2. .Write .the .whole .number.
3. .If .there .is .a .remainder, .write .a .fraction .with .the .remainder .in .the .numerator .and .the
.original .denominator .in .the .denominator. .
Ex. .Convert .17/5 .to .a .mixed .number? .
,17/5=3 .with .a .remainder .of .2
17/5=3 .2/5
How .do .you .convert .a .mixed .number .into .a .improper .fraction? .- .correct .answer. . . . .1.
.Multiply .the .whole .number .in .the .mixed .number .by .the .denominator .of .the .fraction. .
2. .Add .the .result .to .the .numerator .of .the .fraction.
Ex. .Convert .5 .1/6 .to .an .improper .fraction. .
5x6= .30 .
30+1= .31
5 .1/6= .31/6
When .should .you .convert .mixed .numbers .into .improper .fractions? .- .correct .answer. . . .
.Whenever .you .are .asked .to .multiply .or .divide .mixed .numbers
How .do .you .reduce .a .fraction? .- .correct .answer. . . . .You .reduce .a .fraction .by .dividing .both
.the .numerator .and .the .denominator .by .a .single .value .that .divides .evenly .into .both .of
.them.
Ex. .Reduce .5/10?
Both .5 .and .10 .are .divisible .by .5
5/5=1
10/5=2
5/10= .1/2
Key .words .for .equal? .- .correct .answer. . . . .Is, .are, .has, .was, .were, .had
Key .words .for .addition? .- .correct .answer. . . . .Sum, .together, .more, .total, .greater, .or .older
.than
Key .word .for .multiplication? .- .correct .answer. . . . .Product, .times, .of
Keywords .of .division? .- .correct .answer. . . . .Per, .evenly
Key .words .of .subtraction? .- .correct .answer. . . . .Difference, .less .than, .fewer, .or .younger
.than, .remain, .left .over
example .of .key .words .for .subtraction. .Jacob .has .5 .fewer .than .Leslie? .- .correct .answer. . . .
.Would .be .Leslie-5=Jacob
, Distance .formula .problems .include .key .words .such .as? .- .correct .answer. . . . .speed, .plane,
.train, .boat, .car, .walk, .run, .climb, .and .swim
Distance .Formula .- .correct .answer. . . . .Rate .x .Time .= .Distance
Key .word .in .the .distance .formula .provide .2 .of .the .3 .elements .- .correct .answer. . . . .rate,
.time, .distance
Plug .those .2 .elements .into .the .formula .and .solve .for .the .third
Rate .and .time .have .to .be .measured .into .common .units .- .correct .answer. . . . .If .the .rate .is
.measured .in .miles .per .hour, .the .time .has .to .be .measured .in .hours, .not .minutes .or .days
2 .ways .to .solve .word .problems .- .correct .answer. . . . .1. .Translate .the .problem .into .an
.algebraic .equation .and .then .solve .for .the .missing .information
2. .Work .backwards .by .plugging .in .one .of .the .answer .choices
A .neat .trick .to .see .if .a .number .is .divisible .by .3. .- .correct .answer. . . . .Add .all .of .its .digits. .If
.the .sum .of .the .digits .is .divisible .by .3, .the .number .itself .is .divisible .by .3. .
Ex. .Is .132 .divisible .by .3? .
1+3+2=6 .6/3=2
Which .means .that .132 .is .divisible .by .3. .This .method .also .works .for .9.
Raising .fraction .to .higher .terms .- .correct .answer. . . . .It .allows .you .to .rewrite .a .fraction .with .a
.larger .numerator .and .denominator
When .would .you .usually .have .to .raise .a .fraction .to .higher .terms .- .correct .answer. . . . .you
.often .have .to .raise .one .or .more .fractions .to .higher .terms .in .order .to .add .or .subtract .them
How .to .add .fractions .that .have .common .denominators .- .correct .answer. . . . .simply .just .add
.the .numerators .and .write .the .result .over .the .denominator. .Do .not .add .the .denominators
Ex. .3/12+6/12= .9/12
How .to .add .mixed .numbers .- .correct .answer. . . . .add .the .whole .numbers .together, .and
.then .add .the .numerators .together .and .place .them .over .the .denominators. .Do .not .add .the
.denominators.
Ex. .3 .3/12 .+ .6 .3/12= .9 .6/12 .Reduced .equals .9 .1/2
If .the .sum .of .the .2 .fractions .happen .to .be .an .improper .fraction .- .correct .answer. . . . .You
.must .convert .the .improper .fraction .into .a .mixed .number
4/7 .+ .6/7 .= .10/7 .so .converted .into .a .mixed .number .it .would .be .1 .3/7
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