All SAT Math Resources
Example Questions
Example Question #471 : Arithmetic
Which of the following fractions is the smallest?
1/3, 115/276, 112/350, 1050/3330, 0.75/2
1/3, 115/276, 112/350, 1050/3330, 0.75/2
First you need to put the fractions in ascending order:
1050/3330, 112/350, 1/3, 0.75/2, 115/276
Then choose the fraction with the smallest value (1050/3330).
Example Question #472 : Arithmetic
Order from greatest to least:
Rewrite the numbers in terms of the least common denominator, which is :
Comparing numerators, we see that
It follows that
and
,
making this the correct order.
Example Question #11 : Fractions
Order from least to greatest:
Express all three fractions in terms of their least common denominator - the least common multiple of denominators 7, 8, and 12, which is 168. Do this by multiplying the numerator and denominator in each fraction by whatever number yields a product of 168 in the denominator.
;
it follows that
,
so
Example Question #472 : Arithmetic
Which of the following five numbers is the greatest?
For each fraction, divide the numerator by the denominator. This is shown below for each fraction to three decimal places:
From the decimal representations, can be seen to be the greatest of the five choices.
Example Question #473 : Arithmetic
Solve each problem and decide which is the best of the choices given.
There is a bag with green marbles, red marbles, purple marbles, and blue marbles. What is the probability that a red marble is randomly chosen from the bag?
To find the probability of a red marble being randomly chosen, you have to divide the number of red marbles by the total number of marbles.
There are red, and total,
thus, creating the fraction
.
To find the percentage, simply divide by and multiply the result by to get .
Example Question #474 : Arithmetic
Determine the approximate percentage given the fraction .
Because a fraction is a part of a whole , set up a proportion.
The fraction is approximately .
Example Question #46 : New Sat Math No Calculator
Bob and Jill go eat dinner at a fancy restaurant. Bob gets lobster and Jill gets crab legs. The lobster cost , and the crab legs cost . If they leave tip, how much is the combined bill?
To do this, we need to sum up each meal, and then convert the tip into a decimal.
Example Question #1 : How To Divide Complex Fractions
Simplify:
Rewrite this complex fraction using a division sign.
Take the reciprocal of the second term and change the division of the division sign. Simplify.
Example Question #475 : Arithmetic
Solve:
First reduce the fraction. We can divide both the numerator and the denominator by 3.
Now our expression looks like this:
When you add or subtract fractions, you need to have the same denominator. The lowest common deonminator here is 2. So we need to multiply and solve:
Example Question #1 : Complex Fractions
Add:
To add , first simply each term by rewriting the terms using a division sign.
Take the reciprocal of the terms after the division sign, and change the division sign to a multiplication sign. Simplify.