Question

5. Calculate the following :-
(a) 4/5 x 3/7 + 4/5 x 3/7​

Answer 1

Step-by-step explanation:

Question:)

1.You have been provided three test-tube.Ones of these test-tubes contains distilled water and other two contain an acidic and a basic solution respectively.If you are given only blue litmus paper , how will you identify the contents of each test- tubes?

Answer 2

$\bf\purple{QuestioN:-}$

Calculate the following :-

4/5 x 3/7 + 4/5 x 3/7​

$\bf\pink{AnsweR:-}$

• In the case of multiplication of fractions,

• We can directly multiply it.

• The condition is to multiply numerator with numerator and multiply denominator with denominator.

The given question is :

•  $\bf{\dfrac{4}{5}\times\dfrac{3}{7}+\dfrac{4}{5}\times\dfrac{3}{7}}$

On multiplying these fractions,

➪   $\bf{\dfrac{4}{5}\times\dfrac{3}{7}=\dfrac{4\times3}{5\times7}}$

➪   $\bf{\dfrac{4\times3}{5\times7}=\dfrac{12}{35}}$

On adding both fractions, we get

➪   $\bf{\dfrac{12}{35}+\dfrac{12}{35}}$

Here denominators are same. So we can directly add these fractions!

➪   $\bf{\dfrac{12}{35}+\dfrac{12}{35}=\dfrac{24}{35}}$

[Note: We don't need to add denominators. We only need to add the numerator of the fraction.]

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