How to Solve (3/4+1/2)

1 answer:

4 0

First you want to make the fractions similar.

to do this you need to make the denominators (the botom part of each fraction) the same.
so you can multiply 1/2 by two DO NOT MULIPLY THE FRACTION AS A WHOLE that would not be good lol
you will multiply
1*2=2
2-2=4
now your fraction will be 2/4

now lets place that back into the equation
3/4+2/4=?
now to solve this the denominators will stay the same.
we only add the top number
3+2= 5

so our answer will be 5/4 or 1 1/4

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Please help on one math question

kipiarov [429]

Hello from MrBillDoesMath!

Answer:

225

Discussion:

Sum ( 2n - 1) from n = 1 to 15

= Sum(2n) - Sum(1) from n = 1 to 15

= 2 Sum(n) - Sum(1) from n = 1 to 15

= 2* 15(15+1)/2 - (1 + 1 + .. + 1)

The first value comes from the fact that the sum of the first n integers is n(n+1)/2. The latter value sums 15 1's.