Jawaban:

1. a) 3/5

b) 1 22/63

c) 14 3/4

d) 3 7/10

2. a) 1

b) 4

c) 5 4/11

3. 1 13/44

4. 116%

5. 7%

6. 3 27/50

Penjelasan:

1. a) 2/20 + 10/20 = 12/20

= 3/5

b) 4/7 + 7/9 = 36/63 + 49/63

= 85/63

= 1 22/63

c) 14 + 6/8 = 56/4 + 3/4

= 59/4

= 14 3/4

d) 2 2/5 + 1 3/10 = 12/5 + 13/10

= 24/10 + 13/10

= 37/10

= 3 7/10

2. a) 9/4 - 5/4 = 4/4

= 1

b) 4 3/4 - 1 1/2 = 19/4 - 3/2

= 19/4 - 6/4

= 16/4

= 4

c) 10 - 4 7/11 = 10 - 51/11

= 110/11 - 51/11

= 59/11

= 5 4/11

3. 6/11 + 75% = 6/11 + 75/100

= 6/11 + 3/4

= 24/44 + 33/44

= 57/44

= 1 13/44

4. 36% + 4/5 = 36% + 80/100

= 36% + 80%

= 116%

5. 64% - 0,57 = 64% - 57/100

= 64% - 57%

= 7%

6. 5 2/4 - 2,3 + 34% = 22/4 - 23/10 + 34/100

= 550 - 230 + 34/100

= 354/100

= 3 54/100

= 3 27/50

semoga membantu

jadikan jawaban terbaik yaaaa :)