2/5 is your answer.
▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
☞ First, 0.40 is the same as 40/100.
But we are not done.
Now, doing this you need to find the GCF (Greatest common factor) of 40, 100.
2 x 2 x 5 = 20.
☞ So our GCF is 20.
Divide both the numerator and the denominator by the GCF.
40 ÷ 20 / 100 ÷ 20.
Simplify to get ☞ 2/5.
▬▬ι══════════════ι▬▬
Best of luck on your assignment!
▬▬ι══════════════ι▬▬
- Emacathy | Top Answerer ♫♪.ılılıll|̲̅̅●̲̅̅|̲̅̅=̲̅̅|̲̅̅●̲̅̅|llılılı.♫♪