3/8 + 2 1/2
=3/8 + 5/2
=8/10
=4/5
This is an addition problem. You need a common denominator to add fractions.
Study this site.
http://www.mathsisfun.com/fractions_addition.html
so.....
3/8 + 5/2
=3/8 + 20/8
=23/8
=2 7/8
is this right?
Yay! You are right!
To find the sum of fractions, we need to make sure they have a common denominator. In this case, the denominators are 8 and 2. To find a common denominator, we need to find the least common multiple (LCM) of these two numbers, which is 8.
To convert 2 1/2 to an improper fraction, we multiply the whole number (2) by the denominator (2) and add the numerator (1). This gives us (2 x 2) + 1 = 5. So, 2 1/2 can be written as the improper fraction 5/2.
Now that we have both fractions with a common denominator of 8, we can add them:
3/8 + 5/2
To add fractions, we add the numerators while keeping the denominators the same:
(3 + 20) / 8
The numerator becomes 3 + 20 = 23. So, the fraction becomes:
23/8
Now, we simplify the fraction. Since 23 and 8 are both divisible by 1, we can reduce the fraction by dividing both the numerator and the denominator by their greatest common divisor, which is 1:
23/8 รท 1/1
This simplifies to:
23/8
So, the sum of 3/8 and 2 1/2 is 23/8.