The least common factor of 3 and 5 was chosen as the first step in order to combine the fractions 2/3 + 4/5, leading to option (A) Finding the least common denominator.
The smallest multiple that any two numbers have in common is called the lowest common multiple.
It implies that we can divide both numbers by that and that this is the lowest number by which both numbers may be divided.
The LCM of 2 and 8 is 8, for instance.
So, using the two fractions provided:
2/3 + 4/5
15 is the least frequent factor between 3:
(10 + 12)/15
Thus, we used LCM in the first phase.
Therefore, the least common factor of 3 and 5 was chosen as the first step in order to combine the fractions 2/3 + 4/5, leading to option (A) Finding the least common denominator.
Know more about the lowest common multiple here:
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Complete question:
When adding 2/3 + 4/5, what step must be completed first?
A)Finding the least common denominator.
B)Reducing the fractions.
C)Adding the numerators, but keeping the denominators.
D)Adding the denominators, but keeping the numerators.
