Answer:
Step-by-step explanation:
Answer:
one plus two is three
Step-by-step explanation:
1+2 = 3
An easy way to do questions like these is by converting the fractions into decimals, at least I used to find it easier by doing so when I first encountered them.
So,
7/9 as a decimal is 0.77
1/3 as a decimal is 0.33
You can do;
0.77 - 0.33
You are left with;
0.44
Which in it's simplest fraction form is;
11/25.
Your answer is 11/25.
I hope this helped, if you need help with understanding how to conver then do let me know! ;3
The greatest common factor is 3.
<span>Answer:
The multiplication factor of increase should be inverse of the multiplication factor of decrease.
e.g. Say you have a number 100.
You increase it by 25%. The multiplication factor is 5/4 i.e. when you multiply 100 by 5/4, you get 100*5/4 = 125. This is 25% more than 100.
Now you want to decrease it by a certain % such that you get 100 back.
Basically, 100*5/4 * x = 100
So x = 4/5 (inverse of 5/4)
Hence, you decrease by 20% (the multiplication factor of 20% is 4/5)
or
Use this formula: cumulative % change = a + b + ab/100
You want the cumulative change to be 0.
a + b + ab/100 = 0
If you know that you are increasing by 25% and want to find the % by which you should decrease to get the same number,
25 + b + 25b/100 = 0
5b/4 = -25
b = -20
So you need to decrease (hence you get the -ve sign) by 20%.</span>
