Let's use the Least Common Multiple to get both denominators equal.
6: 6,12,18,24,30
4: 4,8,12,16,20
They both have 12 in common
Both denominators should be 12
10/12 - 9/12 = 1/12
So the answer to 5/6 - 3/4 is 1/12
\(\frac{5}{6}-\frac{3}{4}\)
\(\frac{5}{6}\times\frac{2}{2}-\frac{3}{4}\times\frac{3}{3}\)
\(\frac{10}{12}-\frac{9}{12}\)
\(\frac{1}{12}\)
\(0.083333333333...\)
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