Jawab:

1. 3 13/15

2. 6 1/15

3. 1

4. 1 5/12

5. 6 3/4

6. 2 1/4

7. 25

8. 1/10

Penjelasan dengan langkah-langkah:

1. 1 3/5 + 2 4/15 =

= (1 3/5 x 3/3) + 2 4/15

= 1 9/15 + 2 4/15

= (1 + 2) + (9/15 + 4/15)

= 3 13/15

2. (-7/5) + (14/3)

= 7/5 + 14/3

= 1 2/5 + 4 2/3

= (1 + 4) + ((2/5 x 3/3) + (2/3 x 5/5))

= 5 + (6/15 + 10/15)

= 6 1/15

3. 5/7 + (-1/3)

= (5/7 x 3/3) + (1/3 x 7/7)

= 15/21 + 7/21

= 21/21

= 1

4. 3/4 + (-2/3)

= (3/4 x 3/3) + (2/3 x 4/4)

= 9/12 + 8/12

= 1 5/12

5.  3/4 × (-2/3)

= 3/4 x (-2/3

= (3/4 x 3/3) x (2/3 x 4/4)

= 9/12 x 8/12

= 81/12

= 6 9/12  

= 6 3/4

6. (-3/4) ÷  (-1/3)

= (3/4 x 3/3) ÷ (1/3 x 4/4)

=  9/12 ÷ 4/12

=  2 1/4

7.  (-3 2/5) × (-7 2/3)

= (3 2/5 x 3/3) x (7 2/3 x 5/5)

= 3 6/15 x 7 10/15

= (3 x 7) + (6/15 x 10/15)

= 21 + 60/15

= 25

8. (-5/4) ÷ (25/2)​​

= 5/4 ÷ 25/2

= 1 1/4 ÷ 12 1/2

= 1 2/8 ÷ 12 4/8

= 1/10

Ini bikin aku pegal banget, please bikin Tecerdas

Maaf jika salah, semoga membantu

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