Question 567164
={{{(12&1/3)-(7&5/6)}}}
={{{(37/3)-(47/6)}}}
Take LCD
={{{((37)(2)-(47)(1))/6}}}
={{{(74-47)/6}}}
={{{27/6}}}
={{{cross(27)/cross(6)}}}
={{{9/2}}}
={{{4&1/2}}}