Datrys 7+8left(7+1+3*4right)divleft(3+4*9right)

$$7+8 \left( 7+1+3 \cdot 4 \right) \div \left( 3+4 \cdot 9 \right)$$

Enrhifo

$$\frac{433}{39}\approx 11.102564103$$

Camau Ateb

Adio 7 a 1 i gael 8.

$$7+\frac{8\left(8+3\times 4\right)}{3+4\times 9}$$

Lluosi 3 a 4 i gael 12.

$$7+\frac{8\left(8+12\right)}{3+4\times 9}$$

Adio 8 a 12 i gael 20.

$$7+\frac{8\times 20}{3+4\times 9}$$

Lluosi 8 a 20 i gael 160.

$$7+\frac{160}{3+4\times 9}$$

Lluosi 4 a 9 i gael 36.

$$7+\frac{160}{3+36}$$

Adio 3 a 36 i gael 39.

$$7+\frac{160}{39}$$

Troswch y rhif degol 7 i’r ffracsiwn \frac{273}{39}.

$$\frac{273}{39}+\frac{160}{39}$$

Gan fod gan \frac{273}{39} a \frac{160}{39} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{273+160}{39}$$

Adio 273 a 160 i gael 433.

$$\frac{433}{39}$$

Ffactor

$$\frac{433}{3 \cdot 13} = 11\frac{4}{39} = 11.102564102564102$$