Datrys 70+100-99/150-99*50

$$70+ \frac{ 100-99 }{ 150-99 } \times 50$$

Enrhifo

$$\frac{3620}{51}\approx 70.980392157$$

Camau Ateb

Tynnu 99 o 100 i gael 1.

$$70+\frac{1}{150-99}\times 50$$

Tynnu 99 o 150 i gael 51.

$$70+\frac{1}{51}\times 50$$

Lluosi \frac{1}{51} a 50 i gael \frac{50}{51}.

$$70+\frac{50}{51}$$

Troswch y rhif degol 70 i’r ffracsiwn \frac{3570}{51}.

$$\frac{3570}{51}+\frac{50}{51}$$

Gan fod gan \frac{3570}{51} a \frac{50}{51} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{3570+50}{51}$$

Adio 3570 a 50 i gael 3620.

$$\frac{3620}{51}$$

Ffactor

$$\frac{2 ^ {2} \cdot 5 \cdot 181}{3 \cdot 17} = 70\frac{50}{51} = 70.98039215686275$$