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my school bag contains 9 books each mass 2/9 kg and 5 folder each mass 7/25 kg what is the total mass of books and folders in my bag​

my school bag contains 9 books each mass 29 kg and 5 folder each mass 725 kg what is the total mass of books and folders in my bag class=

Respuesta :

9*2/9= 18/9= 2kg
5*7/25= 35/25= 1 10/25= 1 2/5 kg
1 2/5kg+2kg= 3 2/5kg or 3.4kg
total mass equals 3 and 2/5kg or 3.4kg

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