Decimals fractions percentages

1/3 + 4/6 = ?%

if Lucy have 3/8 of a pie and Nayla has 4/8 of the same pie, how much pie is left for Katie?

Is 3/4 the same as 16/32 ?

1/2 + 1/4 = ?

If I am 20 and my sister is 3/4 of my age, how old is she?

Lets start with something easy: convert 75% into a fraction