Datrys (6.25-3.75)*0.8/(4-2.75):6.25+(2.5+0.75):3.25/(40-38.8)*5

$$\frac { ( 6.25 - 3.75 ) \cdot 0.8 } { ( 4 - 2.75 ) : 6.25 } + \frac { ( 2.5 + 0.75 ) : 3.25 } { ( 40 - 38.8 ) \cdot 5 }$$

Enrhifo

$$\frac{61}{6}\approx 10.166666667$$

Camau Ateb

Tynnu 3.75 o 6.25 i gael 2.5.

$$\frac{2.5\times 0.8}{\frac{4-2.75}{6.25}}+\frac{\frac{2.5+0.75}{3.25}}{\left(40-38.8\right)\times 5}$$

Lluosi 2.5 a 0.8 i gael 2.

$$\frac{2}{\frac{4-2.75}{6.25}}+\frac{\frac{2.5+0.75}{3.25}}{\left(40-38.8\right)\times 5}$$

Tynnu 2.75 o 4 i gael 1.25.

$$\frac{2}{\frac{1.25}{6.25}}+\frac{\frac{2.5+0.75}{3.25}}{\left(40-38.8\right)\times 5}$$

Ehangu \frac{1.25}{6.25} drwy luosi'r rhifiadur a'r enwadur gyda 100.

$$\frac{2}{\frac{125}{625}}+\frac{\frac{2.5+0.75}{3.25}}{\left(40-38.8\right)\times 5}$$

Lleihau'r ffracsiwn \frac{125}{625} i'r graddau lleiaf posib drwy dynnu a chanslo allan 125.

$$\frac{2}{\frac{1}{5}}+\frac{\frac{2.5+0.75}{3.25}}{\left(40-38.8\right)\times 5}$$

Rhannwch 2 â \frac{1}{5} drwy luosi 2 â chilydd \frac{1}{5}.

$$2\times 5+\frac{\frac{2.5+0.75}{3.25}}{\left(40-38.8\right)\times 5}$$

Lluosi 2 a 5 i gael 10.

$$10+\frac{\frac{2.5+0.75}{3.25}}{\left(40-38.8\right)\times 5}$$

Adio 2.5 a 0.75 i gael 3.25.

$$10+\frac{\frac{3.25}{3.25}}{\left(40-38.8\right)\times 5}$$

Rhannu 3.25 â 3.25 i gael 1.

$$10+\frac{1}{\left(40-38.8\right)\times 5}$$

Tynnu 38.8 o 40 i gael 1.2.

$$10+\frac{1}{1.2\times 5}$$

Lluosi 1.2 a 5 i gael 6.

$$10+\frac{1}{6}$$

Troswch y rhif degol 10 i’r ffracsiwn \frac{60}{6}.

$$\frac{60}{6}+\frac{1}{6}$$

Gan fod gan \frac{60}{6} a \frac{1}{6} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{60+1}{6}$$

Adio 60 a 1 i gael 61.

$$\frac{61}{6}$$

Ffactor

$$\frac{61}{2 \cdot 3} = 10\frac{1}{6} = 10.166666666666666$$