The question presumes that math classes are not part of the real world, which is debatable. The GCF can be used to simplify fractions. Carpenters and chefs use fractions in practical, non-academic settings.
Chat with our AI personalities
use a absolute value to represent a negative number in the real world
counting, business inventory, census, etc.
It's the same as gcf(gcf(75, 100), 175). In other words, you can first use Euclid's algorithm to find the gcf of 75 and 100; then you can calculate the gcf of the result with 175. To help you get started, by Euclid's algorithm, the gcf of 75 and 100 is the same as the gcf of 75 and 25 (where 25 is the remnainder of the division of 100 / 75).
It's not necessary. Since 12 is a factor of 72, it is automatically the GCF.
Some people use the distributive property to add 24 and 36, but you wouldn't use it to find the GCF which, by the way, is 12.