Find the exat sum or difference.

Gerri spends 1/21 of her money on pencils and 2/21 on paper. What fraction of her money does she spend? Give the answer in simplest form.

A 1/7

B 3/20

C 4/21

D 8/7

Question

Find the exat sum or difference.

Gerri spends 1/21 of her money on pencils and 2/21 on paper. What fraction of her money does she spend? Give the answer in simplest form.

A 1/7

B 3/20

C 4/21

D 8/7

aripotta · Answer

what's 1/21 + 2/21?

anonymous · Answer

0.142857143

aripotta · Answer

or 3/21 lol

aripotta · Answer

3/21 can be simplified tho. can you tell me what it simplifies to?

sammixboo · Answer

$\Large \frac{1}{21}+\frac{2}{21}~ \color{red}{->~ }\frac{2+1}{21} ~\color{red}{->~ }\frac{3}{21}$

anonymous · Answer

so b

sammixboo · Answer

No :P $\Large \frac{3}{21}$ can be simplified. We can divide both the numerator and denominator by 3, since 3 is the highest common factor of 3 and 21.

$\Large \frac{3\div 3}{21\div 3}$

Can you tell me what is 3/3 and 21/3?

fibonaccichick666 · Answer

you want to work with fractions here, not a calculator.  Make sure you understand how they add together