How do you reduce the fraction 12-40 into a lowest term?

you see what the numerator and the denominator both are divisible by except for 1.

well it goes back to multiplication tables. They are both even numbers so 2 will go in to them 2 goes into 12 6 times and 7 times into 14. so thats 6 over 7

1-8

0.0032 = 32/10000 = 2/625 can't reduce further than 2/625 since 625 is not evenly divisible by 2.

Doing that makes the numbers smaller, so it is easier.