Question

ADD:
5 1
------ + -------
9z^3 15z^2

Answer 1

lcm = 45z^3
adding

5 * 5 + 3 * 3x
-------------
45z^3

= 25 + 9z
-------
45 z^3

Answer 2

(25+3z)
--------
45z*2

Answer 3

sorry the denominator is 45z*3

Answer 4

pardon but the 9z not is right - the 3z is correct - so check it please

Answer 5

yes u r right jhony - i dont know why i put 2 3'3 there!

Answer 6

thanx for pointing it out

Answer 7

why ? - because the 15z*2 you need multiplie with 3z for you get 45z*3

Answer 8

ok please you

Answer 9

well i just made a human mistake jhonyy9 - we all do from time to time

Answer 10

a wise man once said 'anyone who never makes a mistake never does anything'.

Answer 11

yes hence is naturaly because we have not computer

Answer 12

true

Answer 13

sorry correctly we are not computer

Answer 14

right - by the way its best to use ^ to indicate a power . * also means multiply.

Answer 15

ok but i like please help me how can i make this sign ?

Answer 16

where io have this on the keyboard ?

Answer 17

can you help me please ?

Answer 18

ok - its usually above the 6 at the center near the top. Type shift + 6 of course.

Answer 19

but this sign is divide-ation

Answer 20

shift with 6

Answer 21

oh - your keyboard is different to mine i'm using a mac - but it should be on a pc as well

Answer 22

i us windows

Answer 23

well - scan your keyboard - are u sure there is no '^'.

Answer 24

sorry but i not can make this sign of exponent

Answer 25

i suppose u could write the word power

45 zpower3

Answer 26

strange - u could write '45 z to power 3'
that would ensure it would be understood

Answer 27

yes exactly