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.
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.
1 answer
1 answer