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Problemi Simili mit-Tiftix tal-Web

Sehem

\frac{n+1}{r\left(n+1\right)}-\frac{r}{r\left(n+1\right)}
Biex iżżid jew tnaqqas l-espressjonijiet, espandihom biex id-denominaturi tagħhom ikunu l-istess. L-inqas multiplu komuni ta' r u n+1 huwa r\left(n+1\right). Immultiplika \frac{1}{r} b'\frac{n+1}{n+1}. Immultiplika \frac{1}{n+1} b'\frac{r}{r}.
\frac{n+1-r}{r\left(n+1\right)}
Billi \frac{n+1}{r\left(n+1\right)} u \frac{r}{r\left(n+1\right)} għandhom l-istess denominatur, naqqashom billi tnaqqas in-numeraturi tagħhom.
\frac{n+1-r}{nr+r}
Espandi r\left(n+1\right).