I think the probability of drawing a king card on the first draw is 1/12
Using the sum (addition) and two 2-digit addends, 12 + 34 can be answered without regrouping.
First you see how many times a number can go into the numerator, then you check it for the denominator. They number you are simplifying them by must be the same.<span />
Y = 7x + 12
-7y = x + 56
-7y = x + 56
-7 -7
y = ⁻¹/₇ - 8
The following lines are perpendicular.
1 quart = 32 ounces
<span>640 / 32
if you need more explaining just ask </span>