Question

-3/4+4/5 find the sum​

Answer 1

Answer:

1/20

Step-by-step explanation:

LCM of denominators=20

-3/4=-15/20. , 4/5=16/20

-15/20+16/20=1/20

Answer 2

$\mathfrak{\large{\underline{\underline{Answer :-}}}}$

The answer is $\bf{\dfrac{1}{20}}$

$\mathfrak{\large{\underline{\underline{Explanation :-}}}}$

$\sf{\implies} \: \dfrac{ - 3}{4} + \dfrac{4}{5}$

To add them, we need to make them like fractions. Like Fractions are the ones with same denominators. We can make two different Fractions into Like Fractions by finding the Least Common Multiple (LCM) of the Denominator.

Denominators are 4 and 5.

LCM of 4 and 5

$\begin{array}{r|l} 2 & 4,5 \\\cline{1-2} 2 & 2,5 \\\cline{1-2} 5 & 1,5 \\\cline{1-2} & 1,1 \end{array}$

LCM = 2 × 2 × 5

$\implies$ 4 × 5

$\implies$ 20

Least Common Multiple is 20

$\rule{300}{1.5}$

$\sf{\implies} \: \dfrac{ (- 3) \times 5}{4 \times 5} + \dfrac{4 \times 4}{5 \times 4}$

$\sf{\implies} \: \dfrac{ - 15 + 16}{20}$

$\bf{\implies} \: \dfrac{1}{20}$

$\therefore$ The answer is $\bf{\dfrac{1}{20}}$