liwanu spent 2/25 hours on his math homework and 1 3/5 hour on his science homework. how long did it take him to do science and math homework
To find out how long it took Liwanu to do both his math and science homework, we need to add the time taken for each subject.
The time taken for math homework is 2/25 hours.
The time taken for science homework is 1 3/5 hours, which can be written as (5/5 + 3/5) = 8/5 hours.
To find the total time taken, we add these two times: 2/25 + 8/5.
To add these fractions, we need a common denominator, which is 25 in this case.
Converting the second fraction to have a denominator of 25: 8/5 = (8/5) * (5/5) = 40/25.
Now we can add the fractions: 2/25 + 40/25 = 42/25.
The total time taken to do science and math homework is 42/25 hours.
Alternatively, we can simplify this fraction by dividing the numerator and denominator by their greatest common divisor, which is 1: 42/25 = 42 ÷ 1 / 25 ÷ 1 = 42/25.
Therefore, it took Liwanu 42/25 hours to do both his math and science homework.
To find out how long it took Liwanu to do both his math and science homework, you need to add the time he spent on each subject.
First, let's convert the mixed number 1 3/5 to an improper fraction:
1 3/5 = (1 * 5 + 3) / 5 = 8/5
Now, let's add the time spent on math and science homework:
2/25 + 8/5
To add fractions with different denominators, we need to convert them to a common denominator. In this case, the least common denominator (LCD) is 25:
2/25 + 8/5 = (2/25 * 1/1) + (8/5 * 5/5)
Now we can add the fractions:
2/25 + 8/5 = 2/25 + 40/25 = (2 + 40)/25 = 42/25
The resulting fraction, 42/25, represents the total time Liwanu spent on both math and science homework.
However, it's worthwhile to note that 42/25 hours can be simplified as 1 17/25 hours. So it took Liwanu approximately 1 hour and 17 minutes to do both his math and science homework.
To calculate the total time Liwanu spent on his math and science homework, we need to find a common denominator for the fractions. The denominator for 25 and 5 is 25. Let's convert the fractions:
2/25 hours for math homework = (2 * 1/25) = 2/25 hours
1 3/5 hours for science homework = (1 * 5/5) hours + (3/5) hours = 5/5 hours + 3/5 hours = 8/5 hours
Now, we can add the times:
2/25 hours (math) + 8/5 hours (science) = (2/25) + (8/5)
To add these fractions, we need a common denominator, which is 25:
(2/25) + (8/5) = (2/25) + (8/5 * 5/5) = (2/25) + (40/25) = (2 + 40)/25 = 42/25 hours
Therefore, it took Liwanu a total of 42/25 hours to complete his math and science homework.