Fractions
Simplify the fraction:
28/35
Divide both the numerator and denominator by 7!
4/5
Write 6 as a percentage of 25
= 6/25 x 4
= 24/100
OR 24%
8.04 x 10
=80.4
If m=7 then:
3(m-2) =
= 3 x 5
= 15
How cool is your math teacher from 0 - 100%?
Obviously 100%
Convert 11/6 to a mixed numeral
1 5/6!
Express 1.2% as a fraction:
1.2/100
REMOVE DECIMAL PLACE!
12/1000
17.3 ÷ 100
= 0.173
If x=10 and y=2 then:
3x - 5y =
= (3 x 10) + (5 x 2)
= 30 + 10
= 40
6a x 3m x 2b =
26abm
REMEMBER TO PLACE IN ALPHABETICAL ORDER!
6/7 x 7/9
= 42/63
Simplify! Both can be divided by 21!
=2/3
Find 30% of 700
700 ÷ 100 = 7 OR 1%
7 x 30 = 210 OR 30%!
Write the decimal 0.875 as a fraction in its simplest form
= 875/1000 (Half the points)
Both can be divided by 125!
= 7/8
= 3n/2
Where p = 5m2 AND w = 10m2
Find the total area of the playground
= p + 2w
= 5 + (2 x 10)
= 25m2
1/2 ÷ 2/3
= 1/2 X 3/2
= 3/4
= 0.45 x 100
= 45%
Write 12 3/5 as a decimal
Leave the whole number and divide the fraction!
= 3/5
= 0.6
= 12 + 0.6
= 12.6
Simplify/Collect the like term:
12mn + 2mn - 5m
= 14mn + 5m
Write an expression for the total cost in dollars of hiring an electrician for n hours, if they charge $50 callout fee plus $80 per hour.
8/9 - 3/4
= 32/36 - 27/36
= 5/36
Convert 3/20 to a percentage
= 3/20 x 5
= 15/100
= 15%
Evaluate 0.05 x 31.98 without using a calculator.
REMOVE THE DECIMALS!
(THERE ARE 4 IN THIS PROBLEM!)
= 3198 X 5
= 15990
PLACE THE 4 DECIMAL PLACES BACK IN!
= 1.599
Simplify:
30b/6b
= 5
I can divide $20 into the ratio of 3:2
TOTAL PARTS = 5
= 20/5
= $4 OR 1 PART
Therefore:
= 3 x $4 : 2 x $4
= $12 : $8
YOU CAN DOUBLE CHECK! $12 + $8 = $20!