saya boleh minta tolong, saya ada pr MTK pakai cara

Berikut ini adalah pertanyaan dari gabriellasharonpangk pada mata pelajaran Matematika untuk jenjang Sekolah Menengah Pertama

Saya boleh minta tolong, saya ada pr MTK

pakai cara dan butuh penjelasan



saya boleh minta tolong, saya ada pr MTK pakai cara dan butuh penjelasan​

Jawaban dan Penjelasan

Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.

1. 2 ⅗ × 4 ⅐ =

= (2 × 5 + 3)/5 × (4 × 7 + 1)/7

= 13/5 × 29/7

= (13 × 29)/(5 × 7)

= 377/35

= 1 27/35

2. 0,36 × 0,21

= 36/100 × 21/100

= (36 × 21)/(100 × 100)

= 756/10.000

= 0,0756

3. 4 ⅑ × 2 3/7

= (4 × 9 + 1)/4 × (2 × 7 + 3)/7

= 37/4 × 17/7

= (37 × 17)/(4 × 7)

= 629/28

= 22 13/28

4. 2 ⅖ ÷ 3 ¼

= (2 × 5 + 2)/5 ÷ (3 × 4 + 1)/4

= 12/5 ÷ 13/4

= 12/5 × 4/13

= 48/65

5. 4 ⅐ × 0,52

= (4 × 7 + 1)/7 × 52/100

= 29/7 × 52/100

= 1.508/700

= 2 108/700

= 2 (108 ÷ 4)/(700 ÷ 4)

= 2 27/175

6. 0,34 × 0,21

= 34/100 × 21/100

= 714/10.000

= 0,0714

1. 2 ⅗ × 4 ⅐ = = (2 × 5 + 3)/5 × (4 × 7 + 1)/7= 13/5 × 29/7= (13 × 29)/(5 × 7)= 377/35= 1 27/352. 0,36 × 0,21= 36/100 × 21/100= (36 × 21)/(100 × 100)= 756/10.000= 0,07563. 4 ⅑ × 2 3/7= (4 × 9 + 1)/4 × (2 × 7 + 3)/7= 37/4 × 17/7= (37 × 17)/(4 × 7)= 629/28= 22 13/284. 2 ⅖ ÷ 3 ¼ = (2 × 5 + 2)/5 ÷ (3 × 4 + 1)/4= 12/5 ÷ 13/4= 12/5 × 4/13= 48/655. 4 ⅐ × 0,52= (4 × 7 + 1)/7 × 52/100= 29/7 × 52/100= 1.508/700= 2 108/700= 2 (108 ÷ 4)/(700 ÷ 4)= 2 27/1756. 0,34 × 0,21= 34/100 × 21/100= 714/10.000= 0,07141. 2 ⅗ × 4 ⅐ = = (2 × 5 + 3)/5 × (4 × 7 + 1)/7= 13/5 × 29/7= (13 × 29)/(5 × 7)= 377/35= 1 27/352. 0,36 × 0,21= 36/100 × 21/100= (36 × 21)/(100 × 100)= 756/10.000= 0,07563. 4 ⅑ × 2 3/7= (4 × 9 + 1)/4 × (2 × 7 + 3)/7= 37/4 × 17/7= (37 × 17)/(4 × 7)= 629/28= 22 13/284. 2 ⅖ ÷ 3 ¼ = (2 × 5 + 2)/5 ÷ (3 × 4 + 1)/4= 12/5 ÷ 13/4= 12/5 × 4/13= 48/655. 4 ⅐ × 0,52= (4 × 7 + 1)/7 × 52/100= 29/7 × 52/100= 1.508/700= 2 108/700= 2 (108 ÷ 4)/(700 ÷ 4)= 2 27/1756. 0,34 × 0,21= 34/100 × 21/100= 714/10.000= 0,07141. 2 ⅗ × 4 ⅐ = = (2 × 5 + 3)/5 × (4 × 7 + 1)/7= 13/5 × 29/7= (13 × 29)/(5 × 7)= 377/35= 1 27/352. 0,36 × 0,21= 36/100 × 21/100= (36 × 21)/(100 × 100)= 756/10.000= 0,07563. 4 ⅑ × 2 3/7= (4 × 9 + 1)/4 × (2 × 7 + 3)/7= 37/4 × 17/7= (37 × 17)/(4 × 7)= 629/28= 22 13/284. 2 ⅖ ÷ 3 ¼ = (2 × 5 + 2)/5 ÷ (3 × 4 + 1)/4= 12/5 ÷ 13/4= 12/5 × 4/13= 48/655. 4 ⅐ × 0,52= (4 × 7 + 1)/7 × 52/100= 29/7 × 52/100= 1.508/700= 2 108/700= 2 (108 ÷ 4)/(700 ÷ 4)= 2 27/1756. 0,34 × 0,21= 34/100 × 21/100= 714/10.000= 0,07141. 2 ⅗ × 4 ⅐ = = (2 × 5 + 3)/5 × (4 × 7 + 1)/7= 13/5 × 29/7= (13 × 29)/(5 × 7)= 377/35= 1 27/352. 0,36 × 0,21= 36/100 × 21/100= (36 × 21)/(100 × 100)= 756/10.000= 0,07563. 4 ⅑ × 2 3/7= (4 × 9 + 1)/4 × (2 × 7 + 3)/7= 37/4 × 17/7= (37 × 17)/(4 × 7)= 629/28= 22 13/284. 2 ⅖ ÷ 3 ¼ = (2 × 5 + 2)/5 ÷ (3 × 4 + 1)/4= 12/5 ÷ 13/4= 12/5 × 4/13= 48/655. 4 ⅐ × 0,52= (4 × 7 + 1)/7 × 52/100= 29/7 × 52/100= 1.508/700= 2 108/700= 2 (108 ÷ 4)/(700 ÷ 4)= 2 27/1756. 0,34 × 0,21= 34/100 × 21/100= 714/10.000= 0,0714

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Last Update: Sun, 30 Apr 23