Datrys 98/8-59/16

$$9 \frac { 8 } { 8 } - 5 \frac { 9 } { 16 }$$

Enrhifo

$$\frac{71}{16}=4.4375$$

Camau Ateb

Lluosi 9 a 8 i gael 72.

$$\frac{72+8}{8}-\frac{5\times 16+9}{16}$$

Adio 72 a 8 i gael 80.

$$\frac{80}{8}-\frac{5\times 16+9}{16}$$

Rhannu 80 â 8 i gael 10.

$$10-\frac{5\times 16+9}{16}$$

Lluosi 5 a 16 i gael 80.

$$10-\frac{80+9}{16}$$

Adio 80 a 9 i gael 89.

$$10-\frac{89}{16}$$

Troswch y rhif degol 10 i’r ffracsiwn \frac{160}{16}.

$$\frac{160}{16}-\frac{89}{16}$$

Gan fod gan \frac{160}{16} a \frac{89}{16} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.

$$\frac{160-89}{16}$$

Tynnu 89 o 160 i gael 71.

$$\frac{71}{16}$$

Ffactor

$$\frac{71}{2 ^ {4}} = 4\frac{7}{16} = 4.4375$$