moira needes a total of 2 1/4 hours to finish reading a book. yesterday, she reed for 1 7/8 hours. supply the correct numbers to compleat the equation that can be used to determine the number of hours,h, that moira needs to read to finish the book.
To determine the number of hours, h, that Moira needs to read to finish the book, we can subtract the time she has already read yesterday, 1 7/8 hours, from the total time needed to finish the book, 2 1/4 hours.
Therefore, the equation is:
2 1/4 hours - 1 7/8 hours = h
To solve this equation, we need to find a common denominator for the fractions. The least common multiple (LCM) of 4 and 8 is 8.
Converting the fractions to have a denominator of 8:
2 1/4 hours = 2 2/8 hours
1 7/8 hours = 1 7/8 hours
Substituting these values into the equation:
2 2/8 hours - 1 7/8 hours = h
Next, we can subtract the fractions:
(2-1) + (2/8 - 7/8) = h
1 + (-5/8) = h
(8/8) + (-5/8) = h
3/8 = h
Therefore, Moira needs to read an additional 3/8 hours to finish the book.