Divisors ndi multiples

"Manambala zingapo" mutu ankaphunzira mu sitandade 5 cha sekondale sukulu. cholinga chake ndi kusintha m'kamwa ndi olembedwa a masamu. phunziro ili anayambitsanso mfundo zatsopano - ndi "multiples" ndi "ziboda", yakwanira njira chopeza divisors ndi multiples wa nambala zachilengedwe, luso kupeza NOC m'njira zosiyanasiyana.

Nkhani imeneyi ndi yofunika kwambiri. Chidziwitso cha izo ingagwiritsidwe ntchito pothetsa zitsanzo ndi ting'onoting'ono. Kuchita izi, inu muyenera kupeza chimodzi chimene ndi kuwerengetsa wamng'ono angapo wamba (LCM).

Pindani amati ndi inteja kuti ndi divisible popanda sanachite.

18: 2 = 9

Lililonse inteja zabwino ali wamphamvu ambiri manambala multiples. Iwo wokha ankaona kuti ndi zazing'ono. Pindani sangakhale zosakwana chiwerengero yokha.

ntchito

Ife kutsimikizira kuti nambala 125 ndi angapo a chiwerengero 5. Kuti tichite zimenezi, gawani nambala yoyamba pa lachiwiri. Ngati 125 ndi divisible ndi 5 popanda kufufuza, ndiye yankho ndi inde.

Onse manambala zachilengedwe angathe kugawidwa: 1. limagaŵikira zingapo yekha.

Monga tikudziwa, chiwerengero cha fission amatchedwa "lopeza", "wogawira", "payekha".

27: 9 = 3,

kumene 27 - lopeza, 9 - wogawira 3 - quotient.

Multiples wa 2, - amene pamene ogaŵikana ziwiri kupanga zotsalira. Iwo ali onse ngakhale.

Multiples 3 - kotero kuti palibe zatsalira anawagawa atatu (3, 6, 9, 12, 15 ...).

Mwachitsanzo, 72. Nambala imeneyi ndi angapo 3, chifukwa divisible ndi 3 popanda yotsala (monga amadziwika, chiwerengero ndi divisible ndi 3 popanda yotsala, ngati Uwerenge manambala ake ndi divisible ndi 3)

Uwerenge 7 + 2 = 9; 9: 3 = 3.

Kodi nambala 11, angapo a 4?

11: 4 = 2 (zotsalira 3)

Yankho: si monga pali bwino.

Common angapo a integers ziwiri kapena zambiri - ndi, amene anagawa ndi nambala ya palibe zotsalira.

K (8) = 8, 16, 24 ...

K (6) = 6, 12, 18, 24 ...

K (6.8) = 24

LCM (osachepera wamba angapo) ali motere.

Chiwerengero aliyense zofunika payekha kulemba mu multiples chingwe - mpaka kupeza yemweyo.

NOC (5, 6) = 30.

Njira imeneyi ndi ntchito manambala yaing'ono.

Pamene ankatha kuwerengetsera NOC kukumana milandu wapadera.

1. Ngati mukufuna kupeza angapo wamba manambala 2 (mwachitsanzo, 80 ndi 20), komwe wina wa iwo (80) ndi divisible mwa wina (20), kenako nambala iyi (80) ndipo ndi angapo zing'onozing'ono manambala awiri.

NOC (80, 20) = 80.

2. Ngati awiri manambala yaikulu alibe divisor wamba, tikhoza kunena kuti NOC awo - ndi mankhwala a manambala awa awiri.

NOC (6, 7) = 42.

Taganizirani chitsanzo lomaliza. 6 ndi 7 ndi ulemu 42 ndi divisors. Ali nawo angapo a palibe zotsalira.

42: 7 = 6

42: 6 = 7

Muchisanzo chimenechi, 6 ndi 7 ndi wophatikizidwa divisors. mankhwala awo ndi wofanana angapo a (42).

6x7 = 42

chiwerengero amatchedwa yaikulu ngati kapena 1 (3: 1 = 3 3 3 = 1) divisible yekha palokha. ena otchedwa gulu.

Mu chitsanzo china, kufunika kuona ngati wogawira 9 pankhani 42.

42: 9 = 4 (zotsalira 6)

Yankho: 9 si divisor 42 chifukwa pali muyeso yankho.

The wogawira ndi osiyana ndi nthawi kuti wogawira - izi ndi nambala imene gawani nambala achilengedwe, ndi pindani yokha lagawidwa ndi nambala iyi.

Wamkulu wamba divisor ya manambala ndi b, kuchulukitsa ndi khola lawo laling'ono, kudzipereka mankhwala a manambala ndi b.

Akuti: gcd (a, b) × LCM (a, b) = ndi × b.

multiples Common a manambala zovuta kuposa awa.

Mwachitsanzo, kupeza NOC chifukwa 168, 180, 3024.

manambala awa ali decomposed mu zinthu zazikulu, olembedwa kuti tinachita mphamvu:

168 = 2³h3¹h7¹

= 180 2²h3²h5¹

3024 = 2⁴h3³h7¹

Kenako lembani madigiri onse m'munsi ndi ntchito kwambiri ndi kuchulukitsa iwo:

2⁴h3³h5¹h7¹ = 15120

NOC (168, 180, 3024) = 15120.