Datrys 15*26/100+25*40/100+36*24/100+25*8/100+55*frac{2}{100}

$$15 \times \frac { 26 } { 100 } + 25 * \frac { 40 } { 100 } + 36 \times \frac { 24 } { 100 } + 25 \times \frac { 8 } { 100 } + 55 \times \frac { 2 } { 100 }$$

Enrhifo

$$\frac{641}{25}=25.64$$

Camau Ateb

Lleihau'r ffracsiwn \frac{26}{100} i'r graddau lleiaf posib drwy dynnu a chanslo allan 2.

$$15\times \frac{13}{50}+25\times \frac{40}{100}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Mynegwch 15\times \frac{13}{50} fel ffracsiwn unigol.

$$\frac{15\times 13}{50}+25\times \frac{40}{100}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Lluosi 15 a 13 i gael 195.

$$\frac{195}{50}+25\times \frac{40}{100}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Lleihau'r ffracsiwn \frac{195}{50} i'r graddau lleiaf posib drwy dynnu a chanslo allan 5.

$$\frac{39}{10}+25\times \frac{40}{100}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Lleihau'r ffracsiwn \frac{40}{100} i'r graddau lleiaf posib drwy dynnu a chanslo allan 20.

$$\frac{39}{10}+25\times \frac{2}{5}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Mynegwch 25\times \frac{2}{5} fel ffracsiwn unigol.

$$\frac{39}{10}+\frac{25\times 2}{5}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Lluosi 25 a 2 i gael 50.

$$\frac{39}{10}+\frac{50}{5}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Rhannu 50 â 5 i gael 10.

$$\frac{39}{10}+10+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Troswch y rhif degol 10 i’r ffracsiwn \frac{100}{10}.

$$\frac{39}{10}+\frac{100}{10}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Gan fod gan \frac{39}{10} a \frac{100}{10} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{39+100}{10}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Adio 39 a 100 i gael 139.

$$\frac{139}{10}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Lleihau'r ffracsiwn \frac{24}{100} i'r graddau lleiaf posib drwy dynnu a chanslo allan 4.

$$\frac{139}{10}+36\times \frac{6}{25}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Mynegwch 36\times \frac{6}{25} fel ffracsiwn unigol.

$$\frac{139}{10}+\frac{36\times 6}{25}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Lluosi 36 a 6 i gael 216.

$$\frac{139}{10}+\frac{216}{25}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Lluosrif lleiaf cyffredin 10 a 25 yw 50. Troswch \frac{139}{10} a \frac{216}{25} yn ffracsiynau gyda’r enwadur 50.

$$\frac{695}{50}+\frac{432}{50}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Gan fod gan \frac{695}{50} a \frac{432}{50} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{695+432}{50}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Adio 695 a 432 i gael 1127.

$$\frac{1127}{50}+25\times \frac{8}{100}+55\times \frac{2}{100}$$

Lleihau'r ffracsiwn \frac{8}{100} i'r graddau lleiaf posib drwy dynnu a chanslo allan 4.

$$\frac{1127}{50}+25\times \frac{2}{25}+55\times \frac{2}{100}$$

Canslo 25 a 25.

$$\frac{1127}{50}+2+55\times \frac{2}{100}$$

Troswch y rhif degol 2 i’r ffracsiwn \frac{100}{50}.

$$\frac{1127}{50}+\frac{100}{50}+55\times \frac{2}{100}$$

Gan fod gan \frac{1127}{50} a \frac{100}{50} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{1127+100}{50}+55\times \frac{2}{100}$$

Adio 1127 a 100 i gael 1227.

$$\frac{1227}{50}+55\times \frac{2}{100}$$

Lleihau'r ffracsiwn \frac{2}{100} i'r graddau lleiaf posib drwy dynnu a chanslo allan 2.

$$\frac{1227}{50}+55\times \frac{1}{50}$$

Lluosi 55 a \frac{1}{50} i gael \frac{55}{50}.

$$\frac{1227}{50}+\frac{55}{50}$$

Gan fod gan \frac{1227}{50} a \frac{55}{50} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{1227+55}{50}$$

Adio 1227 a 55 i gael 1282.

$$\frac{1282}{50}$$

Lleihau'r ffracsiwn \frac{1282}{50} i'r graddau lleiaf posib drwy dynnu a chanslo allan 2.

$$\frac{641}{25}$$

Ffactor

$$\frac{641}{5 ^ {2}} = 25\frac{16}{25} = 25.64$$