Assuming by "1 over 3", you mean a fraction with 1 in the numerator and 3 in the denominator (1/3), it equals 0.3333333333333333... (0 with an infinite amount of 3's after the decimal).
The numerator is 1 and the denominator is 7.
2 over 3 cannot be a mixed number because the numerator is smaller than the denominator
The relationship between 1 over 4 and 3 over 4 is that they both share the same denominator, which is 4.
1 over 1 2 over 2 3 over3 1,000,000 over 1,000,000 any fraction if they have the same numerator and denominator.
3 over 5 and 3 over 4 and 1 over 2
12
3/4+1/4=4/4 or 1 keep the denominator add the numerator if the numerator is the same as the denominator it is also known as 1
4.
10.
The LCD of 1/2 and 2/3 is 6.
Multiply 3*4 = 12
15
4
9
(1 over radical three) over three - I assume that's how you are describing it - can be simplified like any division problem involving fractions in the numerator and denominator. To solve the problem, you take the fraction in the denominator (in this case 3 over 1) and invert it (making it 1 over 3) and multiply it by the numerator. You would have (1 over radical 3) times (1 over 3) which would give you 1 over (3 times radical 3)
multiply the denominator by the whole number in front of the fraction, then add the numerator. take this number and put it over the original denominator. for example 1 and 2/3 is 1*3=3, plus 2 is 5, over the original denominator (3). 1 and 2/3 is equivalent to 5/3