How can i easily subtract and add a fraction?

Mathematics

2 answers:

gulaghasi [49]4 years ago

8 0

Line the decimals up and add like you normally would.But don't forget to put your decimal in your answer

blondinia [14]4 years ago

6 0

Line up the decmails up and add as usally

You might be interested in

Please help with this problem :(

Lilit [14]

36 - 24

= 12 + 16

= 28 - 10 2/3

Best of Luck to you.

8 0

3 years ago

17 13/18 divided by 2 7/9

erik [133]

let's firstly convert the mixed fractions to improper fractions and then divide.

$\bf \stackrel{mixed}{17\frac{13}{18}}\implies \cfrac{17\cdot 18 +13}{18}\implies \stackrel{improper}{\cfrac{319}{18}}~\hfill \stackrel{mixed}{2\frac{7}{9}}\implies \cfrac{2\cdot 9+7}{9}\implies \stackrel{improper}{\cfrac{25}{9}} \\\\[-0.35em] ~\dotfill$

$\bf \cfrac{319}{18}\div \cfrac{25}{9}\implies \cfrac{319}{\underset{2}{~~\begin{matrix} 18 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}\cdot \cfrac{\stackrel{1}{~~\begin{matrix} 9 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}{25}\implies \cfrac{319}{50}\implies 6\frac{19}{50}$