MOIRA needs a total of 2 1/4 hours to finish reading a book yesterday. She read it for 1 7/8 hours supply the correct numbers to complete the equation that can be used to determine the number of hours each that Maura needs to read to finish the book.
Let's denote the number of hours Moira needs to read to finish the book as "x". The equation that can be used to determine the number of hours each that Moira needs to read to finish the book is:
1 7/8 + x = 2 1/4
To solve for "x", we need to find a common denominator for the fractions 1 7/8 and 2 1/4. The common denominator is 8. Rewriting the equation:
15/8 + x = 9/4
To get rid of the fractions, we can multiply both sides of the equation by 8:
8 * (15/8) + 8 * x = 8 * (9/4)
15 + 8x = 18
Now, let's rearrange the equation:
8x = 18 - 15
8x = 3
Dividing both sides by 8:
x = 3/8
Therefore, Moira needs to read 3/8 hours to finish the book.