Solve -9/28-16/45

$$\frac { - 9 } { 28 } - \frac { 16 } { 45 }$$

Evaluate

$$-\frac{853}{1260}\approx -0.676984127$$

Solution Steps

Fraction \frac{-9}{28} can be rewritten as -\frac{9}{28} by extracting the negative sign.

$$-\frac{9}{28}-\frac{16}{45}$$

Least common multiple of 28 and 45 is 1260. Convert -\frac{9}{28} and \frac{16}{45} to fractions with denominator 1260.

$$-\frac{405}{1260}-\frac{448}{1260}$$

Since -\frac{405}{1260} and \frac{448}{1260} have the same denominator, subtract them by subtracting their numerators.

$$\frac{-405-448}{1260}$$

Subtract 448 from -405 to get -853.

$$-\frac{853}{1260}$$

Factor

$$-\frac{853}{1260} = -0.676984126984127$$