Tentukan hasil menggunakan hiking distributif! 4 × 2/7 + 4 × 5/7? 7 × 2/9 - 5 × 4/9?
Matematika
mamayukero1
Pertanyaan
Tentukan hasil menggunakan hiking distributif!
4 × 2/7 + 4 × 5/7?
7 × 2/9 - 5 × 4/9?
4 × 2/7 + 4 × 5/7?
7 × 2/9 - 5 × 4/9?
1 Jawaban
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1. Jawaban cintyasp
4 × 2/7 + 4 × 5/7
= ( 4 x 2/7 ) + ( 4 x 5/7 )
= 4 x ( 2/7 + 5/7 )
= 4 x (7/7)
= 4 x 1
= 4
7 × 2/9 - 5 × 4/9
= ( 7 x 2/9 ) - ( 5 x 4/9 )
= 1/9 ( (7 x 2) - (5 x 4) )
= 1/9 ( 14 - 20 )
= 1/9 ( - 6 )
= - 6/9
= - 2/3