Can someone me and write the sum or difference in simplest form

Hey there! Thanks for asking your question here on !

First, we'll need to get common denominators in each of the two fractions. This can be done by multiplying 1/2 by 5/5 and 1/5 by 1/2.

1/2 x 5/5 = 5/10

1/5 x 1/2 = 1/10

Next, since we now have common denominators, we can simply add the numerators of the fractions together. When adding or subtracting fractions, we have to get common denominators, then add the numerators together. In the final answer, the denominators will remain the same and will not be added together as we would do with the numerators.

5/10 + 1/10 = 6/10

Lastly, we'll need to simplify the fraction. Both the numerator and denominator can be divided by two.

(6/10) / 2 = 3/5

Our final answer is 3/5!

Hope this helps!! :)

idk

step-by-step explanation:

i don't know

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.