Question

simplify 3/4+2/5-5/20​

Answer 1

Given:

$\frac{3}{4} + \frac{2}{5} - \frac{5}{20}$

To find:

simplification of the given equation

Solution:

Equation =

$= \frac{2}{4} + \frac{2}{5} - \frac{5}{20}$

Using the BODMAS rule. Addition is done first.

$= \frac{10 + 8}{20} - \frac{5}{20}$

LCM of 4 and 5 is 20. therefore the denominator is 20. Tge numerator are multiple with opposite denominators.

$= \frac{18}{20} - \frac{5}{20}$

since they have the same denominators, there us no need for using LCM to the denominators.

$= \frac{18 - 5}{20}$

$= \frac{13}{5}$

Therefore the simplification of

$= \frac{2}{4} + \frac{2}{5} - \frac{5}{20}$

is

$= \frac{13}{20}$

The answer is 13/20

Answer 2

($\frac{9}{10}$).

Explanation:

$\frac{3}{4} + \frac{2}{5} + \frac{11}{20\\}$

• It can be added or subtracted, only by making it as a member, which has the same denominator using LCM.

       $\frac{3}{4} + \frac{2}{5} + \frac{-5}{20\\}$

       $\frac{3}{4 }$  × $\frac{2}{5}$  + $\frac{2}{5}$ × $\frac{4}{4} -$ $\frac{5}{20}$ × $\frac{1}{1}$.

      $\frac{15 + 8 - 5}{20}$

BY normal signification.

          = $\frac{18}{20}$

          = $\frac{9}{10}$

The solution for $\frac{3}{4}$ $+$ $\frac{2}{5}$ $- \frac{5}{20} = \frac{9}{10}$