Question

add 17/20+7/201: 1 1/52: 1 5/203: 2 1/54: 1 3/20

Answer 1

Since both fractions have the same denominator we just have to add the numerators:

$\frac{17}{20}+\frac{7}{20}=\frac{17+7}{20}=\frac{24}{20}$

This result can be simplified by dividing both numerator and denominator by 4:

$\frac{24}{20}=\frac{6}{5}$

And finally, we can write this as a mixed number (like in the options). We can do that very easily with a diagram:

So the result written as a mixed number is:

$\frac{6}{5}=1\frac{1}{5}$

The correct answer is option 1