Datrys 1513/15+(-2134)+142/15+(-633/50)

$$15 \frac { 13 } { 15 } + ( - 2134 ) + 14 \frac { 2 } { 15 } + ( - 6 \frac { 33 } { 50 } )$$

Enrhifo

$$-\frac{105533}{50}=-2110.66$$

Camau Ateb

Lluosi 15 a 15 i gael 225.

$$\frac{225+13}{15}-2134+\frac{14\times 15+2}{15}-\frac{6\times 50+33}{50}$$

Adio 225 a 13 i gael 238.

$$\frac{238}{15}-2134+\frac{14\times 15+2}{15}-\frac{6\times 50+33}{50}$$

Troswch y rhif degol 2134 i’r ffracsiwn \frac{32010}{15}.

$$\frac{238}{15}-\frac{32010}{15}+\frac{14\times 15+2}{15}-\frac{6\times 50+33}{50}$$

Gan fod gan \frac{238}{15} a \frac{32010}{15} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.

$$\frac{238-32010}{15}+\frac{14\times 15+2}{15}-\frac{6\times 50+33}{50}$$

Tynnu 32010 o 238 i gael -31772.

$$-\frac{31772}{15}+\frac{14\times 15+2}{15}-\frac{6\times 50+33}{50}$$

Lluosi 14 a 15 i gael 210.

$$-\frac{31772}{15}+\frac{210+2}{15}-\frac{6\times 50+33}{50}$$

Adio 210 a 2 i gael 212.

$$-\frac{31772}{15}+\frac{212}{15}-\frac{6\times 50+33}{50}$$

Gan fod gan -\frac{31772}{15} a \frac{212}{15} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{-31772+212}{15}-\frac{6\times 50+33}{50}$$

Adio -31772 a 212 i gael -31560.

$$\frac{-31560}{15}-\frac{6\times 50+33}{50}$$

Rhannu -31560 â 15 i gael -2104.

$$-2104-\frac{6\times 50+33}{50}$$

Lluosi 6 a 50 i gael 300.

$$-2104-\frac{300+33}{50}$$

Adio 300 a 33 i gael 333.

$$-2104-\frac{333}{50}$$

Troswch y rhif degol -2104 i’r ffracsiwn -\frac{105200}{50}.

$$-\frac{105200}{50}-\frac{333}{50}$$

Gan fod gan -\frac{105200}{50} a \frac{333}{50} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.

$$\frac{-105200-333}{50}$$

Tynnu 333 o -105200 i gael -105533.

$$-\frac{105533}{50}$$

Ffactor

$$-\frac{105533}{50} = -2110\frac{33}{50} = -2110.66$$