Use mental math to find the value of
\[
\frac{15}{124} \cdot \frac{230}{30} \div \frac{230}{124}
\]

Okay, the first thing to do is to make it so you're multiplying everything instead of dividing by that last fraction. To divide by a fraction, you just multiply by its reciprocal. So then, it's 15/124 x 230/30 x 124/230. After that, let's organize it into one single giant fraction since order of operations allows us to arrange division and multiplication however we want. Then it's 15x230x124 / 124x30x230. Then, you'll notice that the 230s and 124s can both be canceled out, leaving 15/30. After simplifying, your final answer is 1/2.

Answered by Sphinx | 2024-06-10

By **using **mental math the **value **of 15/124·230/30÷230/124 is 1/2 .
How to get better at mental math ?
To get **better **at mental **math **or metal **calculation **we can start by practising **doing **arithmetic **operations **of two digit numbers .Then after we can go on **increasing **the digits when we're **getting **better at it. Thinking of the **easiest **way to chunks **numbers **also helps.
According to the **given **question
{(15/124)×(230/30)}/(230/124)
First the **fraction **(230/124) which is in the denominator we **flip **and multiply .
= (15/124)×(230/30)×(124/230)
Now 124 and 124 on numeration and denominator gets **cancelled **and same case is **applicable **for 230 then **after **we are left with 15/30 which is **equal **to 1/2.
Learn more about mental **math **here :
https://brainly.com/question/721129
#SPJ2

Answered by shashankvt | 2024-06-16

Using mental math, the value of the expression 124 15 ​ ⋅ 30 230 ​ ÷ 124 230 ​ simplifies down to 2 1 ​ . This is achieved by multiplying by the reciprocal and canceling common factors. Finally, we simplify to find the result.
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Answered by shashankvt | 2024-09-03