JAMB - Mathematics (2005 - No. 3)
Simplify 3\(\frac{1}{2}\) - (2\(\frac{1}{3}\) x 1\(\frac{1}{4}\)) + \(\frac{3}{5}\)
211/60
21/60
111/60
11/60
Explanation
3\(\frac{1}{2}\) - (2\(\frac{1}{3}\) x 1\(\frac{1}{4}\)) + \(\frac{3}{5}\))
= \(\frac{7}{2}\) - (\(\frac{7}{3}\) x \(\frac{5}{4}\)) + \(\frac{3}{5}\))
= \(\frac{7}{2}\) - \(\frac{35}{12}\) + \(\frac{3}{5}\)
= L.C.M = 60
= \(\frac{(210 - 175 + 36)}{60}\)
= \(\frac{71}{60}\)
= 1\(\frac{11}{60}\)
= \(\frac{7}{2}\) - (\(\frac{7}{3}\) x \(\frac{5}{4}\)) + \(\frac{3}{5}\))
= \(\frac{7}{2}\) - \(\frac{35}{12}\) + \(\frac{3}{5}\)
= L.C.M = 60
= \(\frac{(210 - 175 + 36)}{60}\)
= \(\frac{71}{60}\)
= 1\(\frac{11}{60}\)
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