Matematika Sekolah Menengah Pertama 1. 8×(-1 per 4)×(-7)=2. (-12) : (-4per7)=​

idellschneiderulv – April 11, 2023

1. 8×(-1 per 4)×(-7)=
2. (-12) : (-4per7)=​

Penjelasan dengan langkah-langkah:

1. 8x (-1/4) x (-7) = -8/4 x (-7)=-2x(-7)=14 , karena negatif x negatif hasilnya positif.

2. (-12) :(-4/7)=(-12)x(-7/4)=(-12/4)x(-7)=-3x(-7)=21

RUMUS → a/b : c/d = a/bxd/c=ad/bc

Jawaban:

1. 14

2. 21

Penjelasan dengan langkah-langkah:

1. 8 × (- ¼) × (-7)

= 8 × (- ¼) × (-7)

= 8/1 × (- ¼) × (- 7/1)

= (- 8/4) × (- 7/1)

= 56/4

= 14/1

= 14

2. (-12) ÷ (- 4/7)

= (-12) ÷ (- 4/7)

= (- 12/1) ÷ (- 4/7)

= (- 12/1) × (- 7/4)

= 84/4

= 21/1

= 21

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