Question

What should be subtracted from (3/4+1/3+2/5) to get 1/2?
PLEASE ANSWER IT FAST!!!
ITS VERY URGENT!!!
NO SPAMMING!!

Answer 1

Hi,
3/4+1/3+2/5= 45+20+24/60
= 89/60

then,
according to the question:
89/60-x=1/2
89/60-1/2=59/60=x
then,59/60 should be subtracted

Answer 2

Let the number to be subtracted be x.

$= \ \textgreater \ \frac{3}{4} + \frac{1}{3} + \frac{2}{5} - x = \frac{1}{2}$

LCM = 60

$= \ \textgreater \ \frac{3 * 15 + 1 * 20 + 2 * 12}{60} - x = \frac{1}{2}$

$= \ \textgreater \ \frac{45 + 20 + 24}{60} - x = \frac{1}{2}$

$= \ \textgreater \ \frac{89}{60} - x = \frac{1}{2}$

$= \ \textgreater \ -x = \frac{1}{2} - \frac{89}{60}$

$= \ \textgreater \ -x = \frac{1 * 30 - 89}{60}$

$= \ \textgreater \ -x = \frac{-59}{60}$

$= \ \textgreater \ x = \frac{59}{60}$

Hence the answer is 59/60.

Verification:

$= \ \textgreater \ \frac{3}{4} + \frac{1}{3} + \frac{2}{5} - \frac{59}{60}$

$= \ \textgreater \ \frac{3 * 15 + 1 * 20 + 2 * 12 - 59}{60}$

$= \ \textgreater \ \frac{45 + 20 + 24 - 59}{60}$

$= \ \textgreater \ \frac{30}{60}$

$= \ \textgreater \ \frac{1}{2}$



Hence proved.



Hope this helps!