
Here we will calculate 39 1/8 cups doubled and illustrate 39 1/8 cups doubled on a measuring cup. What is 39 1/8 cups doubled? 39 1/8 cups doubled is twice 39 1/8 cups. Therefore, to double 39 1/8 cups, we multiply 39 1/8 by 2. Here is the formula, the math, and the answer to 39 1/8 cups doubled:
Cup × 2 = Cup doubled
39 1/8 × 2 = 78 1/4
39 1/8 cups doubled = 78 1/4 cups
Below is an illustration of a measuring cup. We show 39 1/8 cups and 39 1/8 cups doubled (78 1/4 cups) so you can see where they are in relation to each other.

As you can see, we filled up our measuring cup to 39 1/8 cups doubled. In other words, we filled it up to 78 1/4, which is two times 39 1/8.
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