Solve 1/3*1/3-1/4=

$$\frac { 1 } { 3 } \times \frac { 1 } { 3 } - \frac { 1 } { 4 } =$$

Evaluate

$$-\frac{5}{36}\approx -0.138888889$$

Solution Steps

Multiply \frac{1}{3} times \frac{1}{3} by multiplying numerator times numerator and denominator times denominator.

$$\frac{1\times 1}{3\times 3}-\frac{1}{4}$$

Do the multiplications in the fraction \frac{1\times 1}{3\times 3}.

$$\frac{1}{9}-\frac{1}{4}$$

Least common multiple of 9 and 4 is 36. Convert \frac{1}{9} and \frac{1}{4} to fractions with denominator 36.

$$\frac{4}{36}-\frac{9}{36}$$

Since \frac{4}{36} and \frac{9}{36} have the same denominator, subtract them by subtracting their numerators.

$$\frac{4-9}{36}$$

Subtract 9 from 4 to get -5.

$$-\frac{5}{36}$$

Factor

$$-\frac{5}{36} = -0.1388888888888889$$