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ប្រសិនបើអ្នកនៅពីក្រោយគេហទំព័រសូមប្រាកដថាដែន*.kastatic.org និង *.kasandbox.org គឺត្រូវបានចាក់សោរ។

មាតិកាសំខាន់

រំលឹកពីការចែកចំនួនចម្រុះ

រំលឹកពីមូលដ្ឋាននៃការចែកប្រភាគនិងអនុវត្តន៏ដោះស្រាយលំហាត់មួយចំនួន

ការចែកប្រភាគ

ការចែកប្រភាគដូចគ្នានឹងការគុណដោយលេខផ្ទុយ (ចម្រាស់).
ឧទាហរណ៌ :
start fraction, 3, divided by, 4, end fraction, start color #e07d10, divided by, end color #e07d10, start fraction, start color #11accd, 2, end color #11accd, divided by, start color #1fab54, 3, end color #1fab54, end fractionequals, start fraction, 3, divided by, 4, end fraction, start color #e07d10, times, end color #e07d10, start fraction, start color #1fab54, 3, end color #1fab54, divided by, start color #11accd, 2, end color #11accd, end fraction
នៅពេលដែលយើងមានលំហាត់លេខគុណ យើងគុណភាគយកនឹងភាគយកបន្ទាប់មកគុណភាគបែងនឹងភាគបែង
ឧទាហរណ៏ទិ 1: ប្រភាគ
start fraction, 3, divided by, 2, end fraction, divided by, start fraction, 8, divided by, 3, end fraction, equals, question mark
ចម្រាស់នៃ start fraction, 8, divided by, 3, end fraction គឺ start fraction, 3, divided by, 8, end fraction
ដូច្នេះ:
start fraction, 3, divided by, 2, end fraction, divided by, start fraction, 8, divided by, 3, end fraction, equals, start fraction, 3, divided by, 2, end fraction, times, start fraction, 3, divided by, 8, end fraction
empty space, equals, start fraction, 3, times, 3, divided by, 2, times, 8, end fraction
empty space, equals, start fraction, 9, divided by, 16, end fraction
ឧទាហរណ៏ 2: ចំនួនចម្រុះ
3, start fraction, 1, divided by, 2, end fraction, divided by, 1, start fraction, 1, divided by, 4, end fraction, equals
ចូរយើងចាប់ផ្ដើមដោយបម្លែងចំនួនចម្រុះទៅជាប្រភាគ
empty space, 3, start fraction, 1, divided by, 2, end fraction, divided by, 1, start fraction, 1, divided by, 4, end fraction
equals, start fraction, 7, divided by, 2, end fraction, divided by, start fraction, 5, divided by, 4, end fraction
equals, start fraction, 7, divided by, 2, end fraction, dot, start fraction, 4, divided by, 5, end fraction, space, space, space, space, space, space, space, start text, M, u, l, t, i, p, l, y, space, b, y, space, t, h, e, space, r, e, c, i, p, r, o, c, a, l, point, end text
equals, start fraction, 7, divided by, start color #11accd, 1, end color #11accd, start cancel, 2, end cancel, end fraction, dot, start fraction, start color #11accd, 2, end color #11accd, start cancel, 4, end cancel, divided by, 5, end fraction, space, space, space, space, space, space, space, start text, S, i, m, p, l, i, f, y, point, end text
equals, start fraction, 7, divided by, start color #11accd, 1, end color #11accd, end fraction, dot, start fraction, start color #11accd, 2, end color #11accd, divided by, 5, end fraction
equals, start fraction, 14, divided by, 5, end fraction, start text, space, ឬ, space, end text, 2, start fraction, 4, divided by, 5, end fraction
ចង់សិក្សាបន្ថែមពីការចែកប្រភាគ? ពិនិត្យមើល វីដេអូនេះ.
ចង់រំលេឹកឡើងវិញពីការចែកប្រភាគ? ពិនិត្យមើល អត្ថបទនេះ.

អនុវត្តន៏

លំហាត់ 1
  • បច្ចុប្បន្ន
start fraction, 3, divided by, 5, end fraction, divided by, start fraction, 1, divided by, 9, end fraction, equals, question mark
  • ចម្លើយរបស់អ្នកគួរតែជា
  • ចំនួនគត់មួយដូចជាលេខ 6
  • ប្រភាគ សម្រួលរួច ដូចជា 3, slash, 5
  • ប្រភាគ មិនទាន់សម្រួលរួច ដូចជា 7, slash, 4
  • ចំនួនចម្រុះ ដូចជា 1, space, 3, slash, 4
  • ចំនួនទសភាគ ពិតប្រាកដ មួយដូចជា 0, point, 75
  • ពហុគុណនៃ pi ដូចជា 12, space, start text, p, i, end text2, slash, 3, space, start text, p, i, end text

ចង់សាកល្បងដោះស្រាយលំហាត់ជាច្រើនទៀតដូចនេះ? ពិនិត្យមើលលំហាត់នេះ.