Question on: JAMB Mathematics - 2009
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\(\frac{5}{6}\)
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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