Maths, find the Exact Value

posted by .

have to find the exact value(so in fraction form.. like 1231231/41231 or something) of 2/3 + 3/4 - 2/11 - 5/21

I'm unsure of the working

  • Maths, find the Exact Value -

    2/3 + 3/4 - 2/11 - 5/21
    3*4*11*7 = 924, so if we use that as our common denominator, the numerators add up to:

    2*(4*11*7) + 3*(3*11*7) - 2*(3*4*7) - 5*(4*11) = 921

    921/924 = 307/308

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. trig/pre -calc

    hello, i don't quite understand how to do this type of problem: 1. find the exact value of sin (pi/3). even more confusing is 2. find the exact value of csc^-1 (1). i would appreciate any kind of help! thank you!
  2. Math

    Find the exact value of sin(pi/24) So like i need like the value like sqrt3/2 but for pi/24... also if you could show me the steps so i could figure the rest out, that would be cool
  3. Math

    Find the exact value of sin(pi/24) So like i need like the value like sqrt3/2 but for pi/24... also if you could show me the steps so i could figure the rest out, that would be cool
  4. Algebra II

    1) Find the exact value of cos theta if the terminal side of theta in standard position contains the point (6,-8). Answer: 3/5 2) Find the exact value of sin(-pi/6). Answer: -1/2 Thanks
  5. Trignometry questions EASY HELP

    1. Which is a solution to the equation below?
  6. math

    An initial-value problem is given by the differential equation, f(x,y) = x + y, y(0) = 1.64 The Euler-midpoint method is used to find an approximate value to y(0.1) with a step size of h = 0.1. Then use the integrating factor method, …
  7. Math

    I have to find the exact value(so in fraction form.. like 1231231/41231 or something) of a^4b^2/c^2 , a = (2/5)^2, b = (8/5)^5 c= (4/5)^10 I'm honestly not sure how to get around to doing it with working
  8. Trig hep, please? Thank you!

    1. Find the exact value of sin(195(degrees)) 2. If cot2(delta)=5/12 with 0(<or =)2(delta)pi, find cos(delta), sin(delta) , tan(delta). 3.find the exact value of sin2(x) if cos(x)= 4/5. (X is in quadrant 1) 4. Find the exact value …
  9. calculus

    i am on "rolles and the mean value theorem" and was just wondering, when i am doing rolles, do i really need to find the exact value of x where f'(c) = 0?
  10. pre-calculus

    find the exact value of sin 112.5 in fraction form

More Similar Questions