1.4 Lösning 5a
Från Mathonline
\( \frac{x}{3} + {x \over 2} - {x \over 6} \; = \; {2\,\cdot\,x \over 2\,\cdot\,3} + {3\,\cdot\,x \over 3\,\cdot\,2} - {x \over 6} \; = \; {2\,x \over 6} + {3\,x \over 6} - {x \over 6} \; = \; \)
\( = \; {2\,x\,+\,3\,x\,-\,x \over 6} \; = \; {4\,x \over 6} \; = \; {2\,x \over 3} \; = \; {2 \over 3} \) \(\!x \)
