Datrys 27*21+21/(21)^2+21=462

$$27 \times 21 + 21 / ( 21 ) ^ { 2 } + 21 = 462$$

Gwireddu

Camau Ateb

Ailysgrifennwch 21^{2} fel 21\times 21. Canslo 21 yn y rhifiadur a'r enwadur.

$$27\times 21+\frac{1}{21}+21=462$$

Lluosi 27 a 21 i gael 567.

$$567+\frac{1}{21}+21=462$$

Troswch y rhif degol 567 i’r ffracsiwn \frac{11907}{21}.

$$\frac{11907}{21}+\frac{1}{21}+21=462$$

Gan fod gan \frac{11907}{21} a \frac{1}{21} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{11907+1}{21}+21=462$$

Adio 11907 a 1 i gael 11908.

$$\frac{11908}{21}+21=462$$

Troswch y rhif degol 21 i’r ffracsiwn \frac{441}{21}.

$$\frac{11908}{21}+\frac{441}{21}=462$$

Gan fod gan \frac{11908}{21} a \frac{441}{21} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{11908+441}{21}=462$$

Adio 11908 a 441 i gael 12349.

$$\frac{12349}{21}=462$$

Troswch y rhif degol 462 i’r ffracsiwn \frac{9702}{21}.

$$\frac{12349}{21}=\frac{9702}{21}$$

Cymharu \frac{12349}{21} gyda \frac{9702}{21}.

$$\text{false}$$