Issolvi 3m/5m-2n-7n/2(2n-5m)

$$\frac { 3 m } { 5 m - 2 n } - \frac { 7 n } { 2 ( 2 n - 5 m ) }$$

Evalwa

$$-\frac{6m+7n}{2\left(2n-5m\right)}$$

Passi Qosra tas-Soluzzjonijiet

Biex iżżid jew tnaqqas l-espressjonijiet, espandihom biex id-denominaturi tagħhom ikunu l-istess. L-inqas multiplu komuni ta' 5m-2n u 2\left(2n-5m\right) huwa 2\left(-5m+2n\right). Immultiplika \frac{3m}{5m-2n} b'\frac{-2}{-2}.

$$\frac{-2\times 3m}{2\left(-5m+2n\right)}-\frac{7n}{2\left(-5m+2n\right)}$$

Billi \frac{-2\times 3m}{2\left(-5m+2n\right)} u \frac{7n}{2\left(-5m+2n\right)} għandhom l-istess denominatur, naqqashom billi tnaqqas in-numeraturi tagħhom.

$$\frac{-2\times 3m-7n}{2\left(-5m+2n\right)}$$

Agħmel il-multiplikazzjonijiet fi -2\times 3m-7n.

$$\frac{-6m-7n}{2\left(-5m+2n\right)}$$

Espandi 2\left(-5m+2n\right).

$$\frac{-6m-7n}{-10m+4n}$$

Espandi

$$-\frac{6m+7n}{2\left(2n-5m\right)}$$

Passi Qosra tas-Soluzzjonijiet

Biex iżżid jew tnaqqas l-espressjonijiet, espandihom biex id-denominaturi tagħhom ikunu l-istess. L-inqas multiplu komuni ta' 5m-2n u 2\left(2n-5m\right) huwa 2\left(-5m+2n\right). Immultiplika \frac{3m}{5m-2n} b'\frac{-2}{-2}.

$$\frac{-2\times 3m}{2\left(-5m+2n\right)}-\frac{7n}{2\left(-5m+2n\right)}$$

Billi \frac{-2\times 3m}{2\left(-5m+2n\right)} u \frac{7n}{2\left(-5m+2n\right)} għandhom l-istess denominatur, naqqashom billi tnaqqas in-numeraturi tagħhom.

$$\frac{-2\times 3m-7n}{2\left(-5m+2n\right)}$$

Agħmel il-multiplikazzjonijiet fi -2\times 3m-7n.

$$\frac{-6m-7n}{2\left(-5m+2n\right)}$$

Espandi 2\left(-5m+2n\right).

$$\frac{-6m-7n}{-10m+4n}$$