Datrys 3^2(5+1.2)-5.8/(frac{1{2}+5^2)div(3+2.1)}

$$\frac{ { 3 }^{ 2 } (5+1.2)-5.8 }{ ( \frac{ 1 }{ 2 } + { 5 }^{ 2 } ) \div (3+2.1) }$$

Enrhifo

$$10$$

Camau Ateb

Cyfrifo 3 i bŵer 2 a chael 9.

$$\frac{9\left(5+1.2\right)-5.8}{\frac{\frac{1}{2}+5^{2}}{3+2.1}}$$

Adio 5 a 1.2 i gael 6.2.

$$\frac{9\times 6.2-5.8}{\frac{\frac{1}{2}+5^{2}}{3+2.1}}$$

Lluosi 9 a 6.2 i gael 55.8.

$$\frac{55.8-5.8}{\frac{\frac{1}{2}+5^{2}}{3+2.1}}$$

Tynnu 5.8 o 55.8 i gael 50.

$$\frac{50}{\frac{\frac{1}{2}+5^{2}}{3+2.1}}$$

Cyfrifo 5 i bŵer 2 a chael 25.

$$\frac{50}{\frac{\frac{1}{2}+25}{3+2.1}}$$

Troswch y rhif degol 25 i’r ffracsiwn \frac{50}{2}.

$$\frac{50}{\frac{\frac{1}{2}+\frac{50}{2}}{3+2.1}}$$

Gan fod gan \frac{1}{2} a \frac{50}{2} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{50}{\frac{\frac{1+50}{2}}{3+2.1}}$$

Adio 1 a 50 i gael 51.

$$\frac{50}{\frac{\frac{51}{2}}{3+2.1}}$$

Adio 3 a 2.1 i gael 5.1.

$$\frac{50}{\frac{\frac{51}{2}}{5.1}}$$

Mynegwch \frac{\frac{51}{2}}{5.1} fel ffracsiwn unigol.

$$\frac{50}{\frac{51}{2\times 5.1}}$$

Lluosi 2 a 5.1 i gael 10.2.

$$\frac{50}{\frac{51}{10.2}}$$

Ehangu \frac{51}{10.2} drwy luosi'r rhifiadur a'r enwadur gyda 10.

$$\frac{50}{\frac{510}{102}}$$

Rhannu 510 â 102 i gael 5.

$$\frac{50}{5}$$

Rhannu 50 â 5 i gael 10.

$$10$$

Ffactor

$$2\times 5$$