To determine the number of hours, h, that Moira needs to read to finish the book, we can set up the equation:
1 7/8 + h = 2 1/4
First, let's convert both mixed numbers to improper fractions:
1 7/8 = (8 * 1 + 7) / 8 = 15/8
2 1/4 = (4 * 2 + 1) / 4 = 9/4
Now, let's substitute these values into the equation:
15/8 + h = 9/4
Multiplying both sides of the equation by 8 to clear the fraction:
8 * (15/8 + h) = 8 * (9/4)
15 + 8h = 18
Now, subtract 15 from both sides of the equation:
15 + 8h - 15 = 18 - 15
8h = 3
Finally, divide both sides of the equation by 8 to solve for h:
8h/8 = 3/8
h = 3/8
So, Moira needs to read for 3/8 of an hour to finish the book.
Moira needs a total of 2 1/4 hours to finish reading a book. Yesterday, she read for 1 7/8 hours. Supply the correct numbers to complete the equation that can be used to determine the number of hours, h , that Moira needs to read to finish the book.(1 point)
1 answer