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ok i just started algebra in school yesterday, since it was my first day and in middle school i only did pre-algebra so i dont really know algebra.... I need some help on questions
one of them is 1 7/8 + 3/4... any idea??
5 3/4 * 1/3.......... 2 1/5 divided 4/5
2/5- 1/10
IF ANYONE COULD HELP ME out with how too do these... i only did 1 of each kind so i can learn it but i need help on how to do each one...
Also in the directions it says Perform the indicated skill... (i get that in other words it means do the question)... and simplify your answer if possible (does that mean make it the smallest it can be??... im pretty sure) BUT IF U HELP me i will RATE YOU A FIVE!!!!! (link)
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Ok, don't panic it's very simple. What you need to do is make both of your bottom numbers the same. So for example, in the 1 7/8+3/4 example, you want to make the 3/4 have an 8 on the bottom also. To make 4 into an 8, obviously you have to times by 2.
The golden rule is always do to the top number what you do to the bottom.
So, because you've timesed by two on the bottom number, you do the same on the top. So now 3/4 looks like 6/8. This is exactly the same amount as 3/4 but in a form that makes it easier to add with.
So then all you have to do is:
7/8+6/8
Just add the top two numbers together leaving the bottom as 8.
So: 7/8+6/8= 13/8
Because the 8 goes into the 13, you have an extra whole number, so you can also write that as:
1 5/8
Then remember the one you had at the front of your original question and add it on and you have:
2 5/8
So the steps are:
1) make the bottom number the same (but only by multiplying)
2) multiply your top number by the same amount you've multiplyed the bottom number
3) add/ subtract the TOP numbers leaving the bottom number as it was.
4) check if you can make any whole numbers from the fraction you get (if the top number is bigger than the bottom number, you can)
If you want help with the division/multiplication ones individually, message me and i'll explain.
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Rating: 5
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WOW thanks... i learnt how to do it today in school i was so happy!!
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