Datrys 2(1/5m-2/5)+3/5

$$2 ( \frac { 1 } { 5 } m - \frac { 2 } { 5 } ) + \frac { 3 } { 5 }$$

Enrhifo

$$\frac{2m-1}{5}$$

Camau Ateb

Defnyddio’r briodwedd ddosbarthu i luosi 2 â \frac{1}{5}m-\frac{2}{5}.

$$2\times \frac{1}{5}m+2\left(-\frac{2}{5}\right)+\frac{3}{5}$$

Lluosi 2 a \frac{1}{5} i gael \frac{2}{5}.

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

Mynegwch 2\left(-\frac{2}{5}\right) fel ffracsiwn unigol.

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

Lluosi 2 a -2 i gael -4.

$$\frac{2}{5}m+\frac{-4}{5}+\frac{3}{5}$$

Gellir ailysgrifennu \frac{-4}{5} fel -\frac{4}{5} drwy echdynnu’r arwydd negatif.

$$\frac{2}{5}m-\frac{4}{5}+\frac{3}{5}$$

Gan fod gan -\frac{4}{5} a \frac{3}{5} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{2}{5}m+\frac{-4+3}{5}$$

Adio -4 a 3 i gael -1.

$$\frac{2}{5}m-\frac{1}{5}$$

Ehangu

$$\frac{2m-1}{5}$$

Camau Ateb

Defnyddio’r briodwedd ddosbarthu i luosi 2 â \frac{1}{5}m-\frac{2}{5}.

$$2\times \frac{1}{5}m+2\left(-\frac{2}{5}\right)+\frac{3}{5}$$

Lluosi 2 a \frac{1}{5} i gael \frac{2}{5}.

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

Mynegwch 2\left(-\frac{2}{5}\right) fel ffracsiwn unigol.

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

Lluosi 2 a -2 i gael -4.

$$\frac{2}{5}m+\frac{-4}{5}+\frac{3}{5}$$

Gellir ailysgrifennu \frac{-4}{5} fel -\frac{4}{5} drwy echdynnu’r arwydd negatif.

$$\frac{2}{5}m-\frac{4}{5}+\frac{3}{5}$$

Gan fod gan -\frac{4}{5} a \frac{3}{5} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{2}{5}m+\frac{-4+3}{5}$$

Adio -4 a 3 i gael -1.

$$\frac{2}{5}m-\frac{1}{5}$$