Solve 81/9*91/8

$$8 \frac { 1 } { 9 } \times 9 \frac { 1 } { 8 }$$

Evaluate

$$\frac{5329}{72}\approx 74.013888889$$

Solution Steps

Multiply 8 and 9 to get 72.

$$\frac{72+1}{9}\times \frac{9\times 8+1}{8}$$

Add 72 and 1 to get 73.

$$\frac{73}{9}\times \frac{9\times 8+1}{8}$$

Multiply 9 and 8 to get 72.

$$\frac{73}{9}\times \frac{72+1}{8}$$

Add 72 and 1 to get 73.

$$\frac{73}{9}\times \frac{73}{8}$$

Multiply \frac{73}{9} times \frac{73}{8} by multiplying numerator times numerator and denominator times denominator.

$$\frac{73\times 73}{9\times 8}$$

Do the multiplications in the fraction \frac{73\times 73}{9\times 8}.

$$\frac{5329}{72}$$

Factor

$$\frac{73 ^ {2}}{2 ^ {3} \cdot 3 ^ {2}} = 74\frac{1}{72} = 74.01388888888889$$