SOLUTION: (-5\7)+(7\3)=

Question 349824: (-5\7)+(7\3)=
Answer by JessicaLGill(2) (Show Source): You can put this solution on YOUR website!
To solve your equation you first must have the same denominator (the bottom number in your fraction). The first question to ask is what is the smallest number that both 7 and 3 will go into. Since both of these are prime numbers, you can multiply them together to get the smallest number that they will both go into, which is 21. To convert each fraction to it's equvilant with 21 do as follows: for the you have to determine how many times 7 will divide into 21, which is 3, and then multiply 3 by the numerator, which is -5 in your question. So Now you have the necessary information to convert the first fraction. Place the new numerator -15 over the new denominator 21 as shown . For the second fraction in your , you will preform the same mathematical calculations. 1. How many times will your original denominator go into your new denominator? 3 will divide into 21 7 times. You then take 7 and multiply it by your old numerator (which is 7 in your question. . Place the 49 over your new denominator of 21 as such: . Now you have the problem set up as such
At this point, since you have common denominators, you can simply add your numerators -15 and 49 which equals 34. Now you should have the following fraction . The next step, if required, would be to simplify this fraction into a mixed numeral. To do this, determine how many times the denominator (21) will divide into the numerator (34). To write this answer as a mixed numbers or a reduced fraction, you would have the following: .
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