Correct Answer - Option 1 : 15/2
GIVEN:
1/2, 5/6 and 3/4
CONCEPT:
LCM of fractions = [LCM of numerators]/[HCF of denominators]
CALCULATION:
LCM \(\left( {\frac{1}{2},\frac{5}{6},\frac{3}{4}} \right) = \frac{{LCM\left( {1,\;5,\;3} \right)}}{{HCF\left( {2,\;6,\;4} \right)}} = \frac{{15}}{2}\)