What is the first thing you need to add 1/9 + 5/6?
A. Add the numerators.
B. Add the denominators.
C. Find the least common denominator.
D. Multiply the numerators by the denominators.
answers:
1.c
2.c
3.b
4.a
5.d
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C. Find the least common denominator.
LCD = 18
Equivalent fractions with the LCD:
1 / 9 = 2 ∙ 1 / 2 ∙ 9 = 2 / 18
5 / 6 = 3 ∙ 5 / 3 ∙ 6 = 15 / 18
1 / 9 + 5 / 6 = 2 / 18 + 15 / 18 = 17 / 18