Simplify 7 frac 1 12 - 4 frac 3 2 2 frac 1 2 - JAMB Mathematics 2009 Question
Simplify 7(\frac{1}{12}) - 4(\frac{3}{2}) + 2(\frac{1}{2})
A
4
B
4\(\frac{1}{6}\)
C
4\(\frac{5}{6}\)
D
5\(\frac{1}{6}\)
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Correct Option: C
7(\frac{1}{12}) - 4(\frac{3}{2}) + 2(\frac{1}{2})
Take care of the whole numbers
7 - 4 + 2 = 5
therefore, 5(\frac{1}{12}) - (\frac{3}{4}) + (\frac{1}{2})
LCM = 12
5(\frac{1 - 9 + 6}{12})
4(\frac{13 - 9 + 6}{12})
= 4(\frac{10}{12})
or = 4(\frac{5}{6})
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