body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Theory

Put minus sign in denominator

A fraction is negative if the numerator or denominator is negative. Therefore, it's equivalent to put the negative in the denominator.

- \frac{9}{4} = \frac{9}{- 4}

Exercises

Recommended exercises

To get personalized recommended exercises, please login first.

Return to lesson.