Datrys 400(16,7+18,7/2)(6.57)=

$$400 ( \frac { 16,7 + 18,7 } { 2 } ) ( 6.57 ) =$$

Enrhifo

$$46515.6$$

Camau Ateb

Adio 16.7 a 18.7 i gael 35.4.

$$400\times \frac{35.4}{2}\times 6.57$$

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

$$400\times \frac{354}{20}\times 6.57$$

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

$$400\times \frac{177}{10}\times 6.57$$

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

$$\frac{400\times 177}{10}\times 6.57$$

Lluosi 400 a 177 i gael 70800.

$$\frac{70800}{10}\times 6.57$$

Rhannu 70800 â 10 i gael 7080.

$$7080\times 6.57$$

Lluosi 7080 a 6.57 i gael 46515.6.

$$46515.6$$

Ffactor

$$\frac{2 \cdot 59 \cdot 73 \cdot 3 ^ {3}}{5} = 46515\frac{3}{5} = 46515.6$$