Homework help with fractions 3rd grader (comparing fractions)
- Thread starter pennyflr
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Here's a thought: why don't you SHOW us your answers and how you got them, and we will be happy to check them!
An easy way to see if the fraction is larger is to set them next to each other and do cross multiplication. If the numerator is larger then the fraction is larger. Example: 1/5 or 4/ 10
1 times 10 = 10 and that would be for 1/5
4 times 5 = 20 and that would be for 4/10
therefore 4/ 10 is larger.
You can also draw circles and cut them into slices and have the third grader shade in the numerator to have a visual.
3/6 is larger than 1/3
1 times 10 = 10 and that would be for 1/5
4 times 5 = 20 and that would be for 4/10
therefore 4/ 10 is larger.
You can also draw circles and cut them into slices and have the third grader shade in the numerator to have a visual.
3/6 is larger than 1/3
mmm4444bot
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Why are you uncertain about these two? :?
The key to comparing fractions is: get a common denominator.
These two already have common denominators.
Your best bet is to get common denominators, or the number on the bottom of the equation. Are you better at multiplying or dividing?
Multiplying:
Here are some examples so I don't give away the answers. 3/8 is greater than 1/4. So you say to yourself "How can I get 4 into 8?" the answer is to multiply the entire 1/4th by 2- so it becomes 2/4. 2 is greater than 3, so the statement is true.
Dividing: I'm going to do the same equation as above.
3/8 is greater than 1/4. So you say to yourself "How can I get 8 into 4?" the answer is to divide the entire 3/8 by 2- so it becomes 1.5/4. 1.5 is greater than 1, so the statement is true.
I've always been a fan of multiplying, so I'd use the top method. Make sure to look at both of them to see what would make the most sense to you. Remember: an odd number divided by 2 always ends in .5... I figure it out like this: 7 divided by 2=?. 3+3=6, and that's one number short of my goal number, so the answer is 3.5... does that make sense?
Multiplying:
Here are some examples so I don't give away the answers. 3/8 is greater than 1/4. So you say to yourself "How can I get 4 into 8?" the answer is to multiply the entire 1/4th by 2- so it becomes 2/4. 2 is greater than 3, so the statement is true.
Dividing: I'm going to do the same equation as above.
3/8 is greater than 1/4. So you say to yourself "How can I get 8 into 4?" the answer is to divide the entire 3/8 by 2- so it becomes 1.5/4. 1.5 is greater than 1, so the statement is true.
I've always been a fan of multiplying, so I'd use the top method. Make sure to look at both of them to see what would make the most sense to you. Remember: an odd number divided by 2 always ends in .5... I figure it out like this: 7 divided by 2=?. 3+3=6, and that's one number short of my goal number, so the answer is 3.5... does that make sense?