You see that both numbers end with an even number and divide by 2 … 8 times. 2 is one of the easiest common divisors to find. Along with /10 if both end with 0 or /5 if one ends 5 and the other 5 or 0. In this case it’s a lucky example, usually you don’t find the GCD with just dividing by 2. But you actually only asked about common divisors and you can see 2, 5 and 10 in decimal
I love reducing fractions, because I’m way too lazy to do mental calculations with big numbers. You can reduce in multiple steps.
I was even so lazy to first write 3.5 3.5 2 0.5 2 2 / 2 1.5 2.5 1 = 1.5 4 3.5 0 3.5 1 / 1 0.5 3.5 3 … (then wrote it without the space, but then you have to know that .NM has to be replaced with N+M; it was less to type). I only did the last step fully in my head
You see that both numbers end with an even number and divide by 2 … 8 times. 2 is one of the easiest common divisors to find. Along with /10 if both end with 0 or /5 if one ends 5 and the other 5 or 0. In this case it’s a lucky example, usually you don’t find the GCD with just dividing by 2. But you actually only asked about common divisors and you can see 2, 5 and 10 in decimal
I love reducing fractions, because I’m way too lazy to do mental calculations with big numbers. You can reduce in multiple steps.
774144/4352=387072/2176=193536/1088=96768/544=48384/272=24192/136=12096/68=6048/34=3024/17
I was even so lazy to first write 3.5 3.5 2 0.5 2 2 / 2 1.5 2.5 1 = 1.5 4 3.5 0 3.5 1 / 1 0.5 3.5 3 … (then wrote it without the space, but then you have to know that .NM has to be replaced with N+M; it was less to type). I only did the last step fully in my head
That’s so cool! Thanks for helping me! I can barely mimic a fraction