Greetings from MrBillDoesMath!
The answer is:
669/221
Discussion:
The ratio of 669 to 221 equals 669/221. Observing the factors, 669 is 3 * 223 and 221 is 13 * 17. As all these factors are distinct primes, nothing cancels in their ratio. Thus, 669/221 remains in its simplest form.
The moon does, as it is significantly larger than all of these combined.
Answer:
The gluten content expressed in micrograms per milliliter is 13 µg/mL.
Step-by-step explanation:
Take into account the details given.
The gluten content of the product is specified as
.
We now need to convert the gluten content to micrograms per milliliter.
For conversion from mg to micrograms, refer to the following facts:
1 mg equals 1000 micrograms.
1 L corresponds to 1000 milliliters.
Next, replace 1 mg = 1000 micrograms and 1 L = 1000 milliliters into the ratio provided above.

Consequently, the gluten ratio in micrograms per milliliter is 13 µg/mL.