15 1/6 - 6 5/12
ok so I know 15 1/6 = 15 2/12 right?
but you can't subtract 5 from 2?
change both to improper fractions
31/6 - 77/12
62/12 -77/12= -15/12 = -1 and you finish it.
won't the improper fraction be 91/12 and 77/12?
I mean 182/12 and 77/12.
To subtract mixed numbers like 15 1/6 and 6 5/12, you need to convert them to improper fractions first. Let's start by converting 15 1/6 to an improper fraction:
15 1/6 = (15 * 6 + 1) / 6 = 91/6
Now let's convert 6 5/12 to an improper fraction:
6 5/12 = (6 * 12 + 5) / 12 = 77/12
Now that we have both numbers as improper fractions, we can subtract them:
91/6 - 77/12
To subtract fractions, we need a common denominator. In this case, the common denominator is 12. We can rewrite the fractions with the common denominator:
91/6 = (91/6) * (2/2) = 182/12
77/12 stays the same.
Now we can subtract the fractions:
182/12 - 77/12 = (182 - 77) / 12 = 105/12
But we can simplify this fraction by dividing both the numerator and denominator by their greatest common divisor, which is 7:
105/12 = (105/7) / (12/7) = 15/2
So, 15 1/6 - 6 5/12 is equal to 15/2 or 7 1/2.