Datrys 13/5:31/3=

$$1 \frac { 3 } { 5 } : 3 \frac { 1 } { 3 } =$$

Enrhifo

$$\frac{12}{25}=0.48$$

Camau Ateb

Rhannwch \frac{1\times 5+3}{5} â \frac{3\times 3+1}{3} drwy luosi \frac{1\times 5+3}{5} â chilydd \frac{3\times 3+1}{3}.

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

Lluosi 1 a 5 i gael 5.

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

Adio 5 a 3 i gael 8.

$$\frac{8\times 3}{5\left(3\times 3+1\right)}$$

Lluosi 8 a 3 i gael 24.

$$\frac{24}{5\left(3\times 3+1\right)}$$

Lluosi 3 a 3 i gael 9.

$$\frac{24}{5\left(9+1\right)}$$

Adio 9 a 1 i gael 10.

$$\frac{24}{5\times 10}$$

Lluosi 5 a 10 i gael 50.

$$\frac{24}{50}$$

Lleihau'r ffracsiwn \frac{24}{50} i'r graddau lleiaf posib drwy dynnu a chanslo allan 2.

$$\frac{12}{25}$$

Ffactor

$$\frac{2 ^ {2} \cdot 3}{5 ^ {2}} = 0.48$$