Its so easy Whats 1 + 1 = ?

1+1=2

1 + 1 = 2

If we have one apple and get another apple, then we now have 2 apples.

We can also do the reverse to confirm our

1 = 2 - 1

1 = 1

Which is true.

It is also not a matter of easy or not, this may be easy for us but hard for a baby.

I hope this helps! :)

15

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional