The solution to 81/4-81/2 is -81/4

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simplify 81/4-81/2

Solution

simplify

\frac{81}{4} - \frac{81}{2}

- \frac{81}{4}

Decimal Notation

- 20.25

Solution steps

\frac{81}{4} - \frac{81}{2}

Least Common Multiplier of

4, 2 : 4

Adjust Fractions based on the LCM

= \frac{81}{4} - \frac{162}{4}

Apply the fraction rule:

\frac{a}{c} - \frac{b}{c} = \frac{a - b}{c}

= \frac{81 - 162}{4}

81 - 162 = - 81

= \frac{- 81}{4}

Apply the fraction rule:

\frac{- a}{b} = - \frac{a}{b}

= - \frac{81}{4}

m^{3} n - mn

\frac{2}{3} \cdot (- 6)

\frac{112}{16}

(a + 1) (a - 1) - 2 a + 2

3 x - 5 + (- x) + 3