Datrys 34/7*12/5*1.25

$$3 \frac { 4 } { 7 } \times 1 \frac { 2 } { 5 } \times 1.25$$

Enrhifo

$$6.25$$

Camau Ateb

Lluosi 3 a 7 i gael 21.

$$\frac{21+4}{7}\times \frac{1\times 5+2}{5}\times 1.25$$

Adio 21 a 4 i gael 25.

$$\frac{25}{7}\times \frac{1\times 5+2}{5}\times 1.25$$

Lluosi 1 a 5 i gael 5.

$$\frac{25}{7}\times \frac{5+2}{5}\times 1.25$$

Adio 5 a 2 i gael 7.

$$\frac{25}{7}\times \frac{7}{5}\times 1.25$$

Lluoswch \frac{25}{7} â \frac{7}{5} drwy luosi'r rhifiadur â’r rhifiadur a'r enwadur â’r enwadur.

$$\frac{25\times 7}{7\times 5}\times 1.25$$

Canslo 7 yn y rhifiadur a'r enwadur.

$$\frac{25}{5}\times 1.25$$

Rhannu 25 â 5 i gael 5.

$$5\times 1.25$$

Lluosi 5 a 1.25 i gael 6.25.

$$6.25$$

Ffactor

$$\frac{5 ^ {2}}{2 ^ {2}} = 6\frac{1}{4} = 6.25$$