Final answer:
Macbeth becomes king by plotting and murdering King Duncan, framing the king's sons for the murder, and fueling his ambition with the help of Lady Macbeth.
Step-by-step explanation:
In Shakespeare's play Macbeth, Macbeth becomes king despite the fact that the king's sons are still alive. This happens because Macbeth, with the help of his wife Lady Macbeth, plots and murders King Duncan. Macbeth then frames the king's sons for the murder, leading to their exile.
Macbeth's path to kingship is driven by his ambition, which is a central theme in the play. The characters in Macbeth are often consumed by their desire for power and are willing to commit heinous acts to achieve their goals.
In the end, Macbeth's actions lead to his downfall and the restoration of rightful rulership. The play serves as a cautionary tale about the destructive consequences of unchecked ambition.
Following this, the king's sons Malcolm and Donalbain, fearing for their own lives, flee Scotland which gives the impression of guilt. This provides Macbeth an unobstructed path to the throne, amidst suspicions and accusations.
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