Question

15/3+21/9 ? How to write in lowest terms

Answer 1

5/1 +7/3 ?step is next

Answer 2

multiply first fraction numerator and denominator with 3 and add second fraction

Answer 3

\[\large \frac{ 15 }{ 3 } + \frac{ 21 }{ 9 }\]

Notice that the denominators are not the same and to add them together we need to make them the SAME.

The LCM (least common multiple) will be \(\large 9\) when listing the multiples of \(\large 3\) and \(\large 9\).

For the first fraction of 15\3 we need to multiply the numerator and denominator by 3 to get the denominator of 9. And the second fraction of 21/9 the denominator is already 9 so it stays the same.

\[\large \frac{ 45 }{ 9 } + \frac{ 21 }{ 9 } = \frac{ 66 }{ 9 } = 7 \frac{ 3 }{ 9 } \text{ }\text{or} \text{ }7\frac{ 1 }{ 3 }\]

Answer 4

5*3/1*3 +7/3
simplify it

Answer 5

That is 15/3+7/3

Answer 6

(15+7)/3

Answer 7

I think you know how to add them now also they have same denominator

Answer 8

@Pawanyadav
I can see where @dayakar is going with this. @dayakar is trying to simply (or put to lowest terms) 15/3 by dividing the numerator and the denominator by 3 to get 5/3 and 21/9 also by 3 to get 7/3. I think that it should result for the same thing?

\[\frac{ 5 }{ 1 } + \frac{ 7 }{ 3 } = \frac{ 15 }{ 3 } + \frac{ 7 }{ 3 } = \frac{ 22 }{ 3 } = 7 \frac{ 1 }{ 3 }\]

Answer 9

I meant to say 15/3 is going to be 5/1

Answer 10

But with less calculation

Answer 11

Thanks Q for all of you