Hello there ....
To get the answer, we must do the following to get it:
1.) Find the LCM.
9,18,27
27
The lcm we got is 27... make it your new denominator.
- 8/9 + 7/27 = ?/27 + ?/27 =
2.) Next is, divide the new denominator by the 9 on the 8/9..
= 3
Then, divide the new denominator again by the 27 on the 7/27.
= 1
3.) Multiply the no. you divided by the numberator of 8 by 8/9
=24/27
Then, multiply the no. again you divided by the numerator of 7 by 7/27
=7/27
4.) Add it up.
24/27 + 7/27 = 31/27 ...
It is an improper fraction so we wil just have to divide it.
31 ÷ 27
1 4/27 is the answer to your question.