if sarah eat 1 and 1/12 out of 2 birthday cakes how much cake is left over

1 1/12 = 13/12

=2-13/12
= 24/12-13/12

=11/12 of a cake left over.

1 1/12 = 13/12

2 = 24/12

24/12 - 13/12 = 11/12 left

To find out how much cake is left over after Sarah eats 1 and 1/12 out of 2 birthday cakes, we need to subtract the amount of cake she ate from the total amount of cake.

Step 1: Convert the mixed number 1 and 1/12 to an improper fraction.
To do this, multiply the whole number (1) by the denominator (12) and add the numerator (1). This gives us 13. So, we have 13/12.

Step 2: Add the improper fraction 13/12 to the number 2 to find out how much cake there initially was for Sarah to eat.
2 + 13/12 = 24/12 + 13/12 = 37/12

Step 3: Subtract the amount Sarah ate (13/12) from the initial amount of cake (37/12).
37/12 - 13/12 = 24/12 = 2

So, there are 2/12 or 1/6 of the birthday cakes left over.