Datrys 400(16.7+18.7/2)(657)=

$$400 ( \frac { 16.7 + 18.7 } { 2 } ) ( 657 ) =$$

Enrhifo

$$4651560$$

Camau Ateb

Adio 16.7 a 18.7 i gael 35.4.

$$400\times \frac{35.4}{2}\times 657$$

Ehangu \frac{35.4}{2} drwy luosi'r rhifiadur a'r enwadur gyda 10.

$$400\times \frac{354}{20}\times 657$$

Lleihau'r ffracsiwn \frac{354}{20} i'r graddau lleiaf posib drwy dynnu a chanslo allan 2.

$$400\times \frac{177}{10}\times 657$$

Mynegwch 400\times \frac{177}{10} fel ffracsiwn unigol.

$$\frac{400\times 177}{10}\times 657$$

Lluosi 400 a 177 i gael 70800.

$$\frac{70800}{10}\times 657$$

Rhannu 70800 â 10 i gael 7080.

$$7080\times 657$$

Lluosi 7080 a 657 i gael 4651560.

$$4651560$$

Ffactor

$$5\times 59\times 73\times 2^{3}\times 3^{3}$$