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

a/b=a* 1/b

The numerator in a fractions can be moved out of the fraction by factoring out 1. 5/3=5* 1/3=5* 1/3

Exercises

Edit Lesson