ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Mathematical Reasoning Videos 30 videos

CAHSEE Math 1.1 Mathematical Reasoning
228 Views

CAHSEE Mathematical Reasoning: Drill 1, Problem 1. Based on this information, which of the following can be determined?

CAHSEE Math 1.2 Mathematical Reasoning
185 Views

CAHSEE Math Mathematical Reasoning: Drill Set 1, Problem 2. Which of the following should be the most appropriate first step in solving the equation?

CAHSEE Math 1.3 Mathematical Reasoning
183 Views

CAHSEE Math Mathematical Reasoning: Drill 1 Problem 3. Which of the following is the correct order of steps?

See All

CAHSEE Math 3.3 Mathematical Reasoning 221 Views


Share It!


Description:

Mathematical Reasoning Drill 3 Problem 3. When adding these fractions without finding the lowest common denominator, which of the following is the best estimate of the exact sum?

Language:
English Language

Transcript

00:03

Here's a shmoopy question you'll find on an exam somewhere in life.

00:07

When adding the fractions 3/7, 5/9 and 6/11 without finding the lowest common denominator,

00:14

which of the following is the best estimate of the exact sum?

00:18

And here are the potential answers...

00:23

Looks like this question is testin’ our estimatin’ skills.

00:27

Basically, we just have to look at each of

00:29

the fractions and come up with a rough estimate for how close they are to 1/9, 1/3, ½ or 2/3.

00:37

3.5 sevenths would be a half, so 3 sevenths is slightly under.

00:42

4.5 ninths would be a half, so 5 ninths is slightly over.

00:49

Anyway. You get the idea.

00:51

The answer is a bunch of halves… or C.

Related Videos

CAHSEE Math 5.3 Algebra and Functions
2033 Views

CAHSEE Math: Algebra and Functions Drill 5, Problem 3. Solve the equation.

CAHSEE Math 1.1 Statistics, Data, and Probability I
406 Views

Statistics, Data, and Probability I: Drill Set 1, Problem 1. What is the mean yearly salary?

CAHSEE Math 1.2 Statistics, Data, and Probability I
198 Views

Statistics, Data, and Probability I: Drill Set 1, Problem 2. What is the median length of these writing utensils?

CAHSEE Math 1.3 Statistics, Data, and Probability I
209 Views

CAHSEE Math Statistics, Data, and Probability I: Drill Set 1, Problem 3. The mode of the number of days in each month for a single non-leap year is...

CAHSEE Math 1.4 Statistics, Data, and Probability I
200 Views

Statistics, Data, and Probability I: Drill Set 1, Problem 4. How old was the final person to join?