Datrys 120+2/2-(45.9div4)=

$$120 + \frac { 2 } { 2 } - ( 45.9 \div 4 ) =$$

Enrhifo

$$109.525$$

Camau Ateb

Rhannu 2 â 2 i gael 1.

$$120+1-\frac{45.9}{4}$$

Adio 120 a 1 i gael 121.

$$121-\frac{45.9}{4}$$

Ehangu \frac{45.9}{4} drwy luosi'r rhifiadur a'r enwadur gyda 10.

$$121-\frac{459}{40}$$

Troswch y rhif degol 121 i’r ffracsiwn \frac{4840}{40}.

$$\frac{4840}{40}-\frac{459}{40}$$

Gan fod gan \frac{4840}{40} a \frac{459}{40} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.

$$\frac{4840-459}{40}$$

Tynnu 459 o 4840 i gael 4381.

$$\frac{4381}{40}$$

Ffactor

$$\frac{13 \cdot 337}{5 \cdot 2 ^ {3}} = 109\frac{21}{40} = 109.525$$