You have to change the denominator of 6/10 into 100 then you will get 60/100 then you add 15/10+60/100
Answer:
Gabriela Mistral works as a humanitarian for
days.
Step-by-step explanation:
Gabriela Mistral was a poet, diplomat, teacher and humanitarian such that each week she worked a certain amount of days as a poet diplomat teacher and humanitarian.
Ratio is 
Let
denotes total number of days Gabriela Mistral work.
As she works 12 days as a teacher,

Total number of days 
So,
she works as a humanitarian for
days.
Answer:
Multiply the first fraction by 
Multiply the second fraction by 
Step-by-step explanation:
Given

Required
Make the denominator equal

Factorize the denominator


Multiply the first fraction by 
Multiply the second fraction by 



<em>The expression now have the same denominator</em>