Question

*2/13 - 2/20 = ?* 1️⃣ 7/130 2️⃣ 0 3️⃣ 4/33 4️⃣ 7/260​

Answer 1

Step-by-step explanation:

=> $\frac{2}{13}$ - $\frac{2}{20}$

Multiply and divide $\frac{2}{13}$ with 20

Multiply and divide $\frac{2}{20}$ with 13

• LCM of 13 , 20 = 120

=> $\frac{2~×~20}{13~×~20}$ - $\frac{2~×~13}{20~×~13}$

=> $\frac{40}{260}$ - $\frac{26}{260}$

=> $\frac{40~-~26}{260}$

=> $\frac{ 14 }{ 260 }$ ✅

Answer 2

Solution :-

$\rightarrow\sf \: \frac{2}{13} - \frac{2}{20}$

taking LCM of denominators we get, (13 * 20 = 260)

$\rightarrow\sf \: \frac{(20 \times 2 - 13 \times 2)}{260} \\ \\ \rightarrow\sf \: \frac{40 - 26}{260} \\ \\ \rightarrow\sf \: \frac{14}{260} \\ \\ \rightarrow\sf \: \frac{ \cancel{2} \times 7}{ \cancel{2} \times 130} \\ \\ \rightarrow \boxed{\bf \frac{7}{130}}$

Hence, option (1) is correct answer .

Learn more :-

Which of the following is an irrational number? / खालीलपैकी अपरिमेय संख्या कोणती? *

√81

22/7

-27/8

√3

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