Question

I added 3/4 + 1/5 and got 4/9 " does it make sense?

Answer 1

$\frac{3}{4} + \frac{1}{5} = \frac{4}{9} \\ \frac{3 \times 5}{4 \times 5} + \frac{1 \times 4}{5 \times 4} = \frac{4}{9} \\ \frac{15 + 4}{20} = \frac{4}{9} \\ \frac{19}{20} ≠ \frac{4}{9}$

THIS SHOWS THAT YOUR ANSWER IS NOT CORRECT.

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Answer 2

Answer:

No, it does not. The answer is 19/20

Step-by-step explanation:

3/4 + 1/5 = ?

3         1              15           4              19

----- + ----      =  --------   +  ------   =  ----------

4         5            20            20           20

1) Multiply the denominators by eachother and cross multiply the apposite numerator and denominator.  4 x 5 = 20. 3 x 5 = 15. 4 x 1 = 4

3) Add together