Express 13 -8 as a rational number with denominator -40 - Vidyadip

Question

Express $\frac{13}{-8}$ as a rational number with denominator -40

✓

Answer

Rational number $=\frac{13}{-8}$
$-40=-8\times5$
$\therefore\frac{13}{-8}=\frac{13\times5}{-8\times5}=\frac{65}{-40}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Mark Question" from Rational Numbers→Rational Numbers — all question types→Maths STD 7 question papers→Maharashtra Board STD 7 question papers→Maharashtra Board question paper generator→

Similar questions

Compare the fractions:
$\frac{5}{9}\text{ and }\frac{11}{15}$

Divide:
11.04 by 1.6

Find the following product:
$5a(6a - 3b)$

Find the area of a parallelogram with base 8cm and altitude 4.5cm.

Find the LCM: $6,8,10$

Subtract:
$x^2$ from $-3 x^2$

Divide:
$6\frac{1}{4}\text{ by }2\frac{3}{5}$

Find which of the following are in proportion?
46, 69, 69, 46

Find the products:
$\Big(\frac{-18}{5}\text{x}^2\text{z}\Big)\times \Big(\frac{-25}{6}\text{az}^2\text{y}\Big)$

Which of the following rational numbers are negative?

$\frac{-3}{7}$
$\frac{-5}{-8}$
$\frac{9}{-83}$
$\frac{-115}{-197}$