tolomg di jawab secepatnya

5. 14/10 + 27/40
= 56/40 + 27/40
= 83/40
= 2 3/40

6. 3/5 + 12/100
= 60/100 + 12/100
= 72/100
= 18/25

7. 4/5 + 16/100
= 80/100 + 16/100
= 96/100
=24/25

8. 25/100 + 7/10
= 25/100 + 70/100
= 95/100
= 19/20

semoga membantu :))