To determine the number of hours Maura needs to finish the book, we can subtract the time she has already spent reading from the total time she needs.
Total time needed: 2 1/4 hours
Time already spent: 1 7/8 hours
Let's convert both fractions to the same denominator:
2 1/4 hours = 9/4 hours
1 7/8 hours = 15/8 hours
Now we can subtract the time already spent from the total time needed:
H = (total time needed) - (time already spent)
H = 9/4 - 15/8
To subtract fractions, the denominators must be the same. Since 4 is equivalent to 8 multiplied by 2, we can rewrite the equation as:
H = 9/4 - 15/8
H = 9/4 - 15/8
H = 9/4 - (15/8 * 2/2)
H = 9/4 - 30/16
H = (9*4)/(4*4) - 30/16
H = 36/16 - 30/16
H = 6/16
The equation to determine the number of hours Maura needs to finish the book is:
H = 6/16 or H = 3/8
Maura needs a total of 2 1/4 hours to finish reading a book yesterday she read for one and 7/8 hours supply the correct numbers to complete the equation that can be used to determine the number of hours H that more needs to finish the book
1 answer
1 answer