What is the question ?
Since there are two unknown quantities ('A' and 'B'), we need two equations in order to find the
values of both.
All we can do is massage the numbers around in various ways to make some statements about them,
but we can't find their values without another equation.
(1/A) + (1/B) = 1/3
Multiply each side by (AB):
B + A = AB/3.
Multiply each side by [ 3/(A+B) ]:
AB/(A+B) = 3
(Their product) divided by (their sum) = 3
=============================================
How to find the value of one of them, as soon as you decide on the value of the other one:
A = 1 / (1/3 - 1/B)
and
B = 1 / (1/3 - 1/A)
One third plus one half equals two fights!
1 over 3 plus 1 over 12 equals 5 over 12
The answer to 1 over 2x plus 13 equals 9 is x equals -8.
7/12
To word out an improper fraction if it was the same denominator, yes, you just add the numerator and it equals 12/9, but as a mixed number it equals 1 1/3 (one and one third). It depends which one you want. :)
1 whole, or 1
One third plus one half equals two fights!
7/12.
1 over 3 plus 1 over 12 equals 5 over 12
The answer to 1 over 2x plus 13 equals 9 is x equals -8.
7/12
three and a third
One third plus one third equals two thirds. Similarly, one cow plus one cow equals two cows, and one book plus one book equals two books. Have you learned anything today ?
1/3 plush 1/3 equals 2/3
1 and 2/15
1 1/3 + 1 1/3 = 2 2/3
To word out an improper fraction if it was the same denominator, yes, you just add the numerator and it equals 12/9, but as a mixed number it equals 1 1/3 (one and one third). It depends which one you want. :)