Question

need help
4/9. - =8/27

Answer 1

Is it \(\huge{\frac{4}{9}-\frac{8}{27}}\)

Answer 2

Find the LCM of 9 & 27
For that Write down the Factors of both denominators (Number which is below the fraction)
\(9 = 3 \times 3\)\[27= 3 \times 3 \times 3\]
Now we do our largest count
3 x 3 x 3 =27

so 27 is the LCM

Now we try to make our denominators equal (we can only subtract or add two fractions when their denominators are equal )

\[{{4 \times 3} \over { 9 \times 3 }}-{8 \over 27}= {12 \over 27}-{8 \over 27}={ {12-8}\over {27}}= {4 \over 27} \]