Jawab lah bilangan bulat di bawah ini !1.) 7 5/12 + 2 1/2 =2.) 7 /5/12 + 4 1/3 =3.) 9/10


Jawab lah bilangan bulat di bawah ini !1.) 7 5/12 + 2 1/2 =

2.) 7 /5/12 + 4 1/3 =

3.) 9/10 - 3/5 =

4.) 2/33 - 5/12 =

5.) 6 1/2 : 2 2/3 =

6.) 4 1/3 : 2 1/2 =

7.) 2/8 × 4/6 =

8.) 3/9 × 4/6 =

9.) -19 + 12 - (-7) + 3 =

TOLONG CARANYA JUGA DITULIS





Nomor 1.

7 \frac{5}{12}  + 2 \frac{1}{2}  =  \frac{89}{12}  +  \frac{5}{2} \\  \\   =  \frac{89 + 30}{12}  =  \frac{119}{12}  = 9 \frac{11}{12}

Nomor 2.

7 \frac{5}{12}  + 4 \frac{1}{3}  =  \frac{89}{12}  +  \frac{13}{3}   \\  \\ =  \frac{89 + 52}{12}  =  \frac{141}{12}  = 11 \frac{9}{12}  = 11 \frac{3}{4}

Nomor 3.

 \frac{9}{10}  -  \frac{3}{5}  =  \frac{9 - 6}{10}  =  \frac{3}{10}

Nomor 4.

 \frac{2}{33}  -  \frac{5}{12}  =  \frac{24 - 165}{396}  =  -  \frac{141}{396}

Nomor 5.

6 \frac{1}{2}  \div 2 \frac{2}{3}  =  \frac{13}{2}  \times  \frac{3}{8}  =  \frac{39}{16}  = 2 \frac{7}{16}

Nomor 7.

 \frac{2}{8}  \times  \frac{4}{6}  =  \frac{1}{4}  \times  \frac{2}{3}  =  \frac{2}{12}  =  \frac{1}{6}

Nomor 8.

 \frac{3}{9}  \times  \frac{4}{6}  =  \frac{1}{3}  \times  \frac{2}{3}  =  \frac{2}{9}

Nomor 9.

 - 19 + 12 - ( - 7) + 3 \\  - 19 + 12 + 7 + 3 \\  - 7 + 7 + 3 \\ 0 + 3 \\ 3




Jawaban:

1. 7 5/12 + 2 1/2 = 89/12 + 5/2 = 89/12 + 30/12 = 119/12 = 9 11/12

2. 7 5/12 + 4 1/3 = 89/12 + 13/3 = 89/12 + 52/12 = 141/12 = 11 9/12 = 11 3/4

3. 9/10 - 3/5 = 9/10 - 6/10 = 3/10

4. 2/33 - 5/12 = 8/132 - 55/132 = -47/132

5.6 1/2 : 2 2/3 = 13/2 : 8/3 = 13/2 × 3/8 = 39/16 = 2 7/16

6. 4 1/3 : 2 1/2 = 13/3 : 5/2 = 13/3 × 2/5 = 26/15 1 11/15

7. 2/8 × 4/6 = 1/2 × 1/3 = 1/6

8. 3/9 × 4/6 = 1/9 × 4/2 = 4/18 = 2/9

9.-19 + 12 - (-7) + 3 = -19 + 12 = -7 - (-7) = 0 + 3 = 3

Itu Yang Nomor 7 Dan 8 Namanya Sistem Coret

Misalnya:

7/8 × 16/21 = 1/1 × 2/3 = 2/3

7 Sama 21 Bisa Dibagi 7

8 Sama 16 Bisa Dibagi 8

Itu Yang Adalah Sistem Coret Di X Ya

Semoga Bantu






Sumber : https://brainly.co.id/tugas/52217897


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