Questions · Page 1 of 2

1 Mark Question

🎯

Test yourself on this topic

50 questions · timed · auto-graded

Question 31 Mark
Which of the two rational numbers is greater in the following pairs?
$\frac{5}{8}\text{ or }\frac{3}{8}$
View full question & answer
Question 41 Mark
Which of the two rational numbers is greater in the following pairs?
$\frac{-15}{4}\text{ or }\frac{-17}{4}$
View full question & answer
Question 51 Mark
Write 'T' for true and 'F' for false for the following:
$\frac{1}{3}$ and $\frac{-3}{2}$ lies on opposite sides of 0 on the number line.
View full question & answer
Question 161 Mark
Which of the following statements are true?
$\frac{-5}{-8}$ lies on the right of $\frac{-5}{7}$ on the number line.
View full question & answer
Question 231 Mark
Write 'T' for true and 'F' for false for the following:
$\frac{-8}{13}$ lies on the left of 0 on the number line.
View full question & answer
Question 241 Mark
Which of the following statements are true?
$\frac{-18}{-13}$ lies to the left of 0 on the number line.
View full question & answer
Question 341 Mark
Find four rational numbers equivalent to the following:
$\frac{-3}{8}$
Answer
Equivalent rational numbers are given below:$\frac{-3}{8}=\frac{-6}{16},\frac{-9}{24},\frac{-12}{32},\frac{-15}{40}$
View full question & answer
Question 351 Mark
Find the multiplicative inverse, or reciprocal of the following:
18
Answer
Reciprocal of $18=\frac{1}{18}$
View full question & answer
Question 361 Mark
Fill n the blank:
$(\dots)\div\Big(\frac{-7}{5}\Big)=\frac{10}{19}$
Answer
$\Big(\frac{-14}{19}\Big)\div\Big(\frac{-7}{5}\Big)=\frac{10}{19}$
Solution:
$(\dots?\dots)\div\Big(\frac{-7}{5}\Big)=\frac{10}{19}$
$(\dots?\dots)=\frac{10}{19}\times\frac{-7}{5}$
$(\dots?\dots)=\frac{-14}{19}$
View full question & answer
Question 371 Mark
Fill in the blank:
Multiplicative inverse of $-1\frac{3}{4}$ is ....
Answer
Multiplicative inverse of $-1\frac{3}{4},$ i.e.,
Solution:
Multiplicative inverse of $-1\frac{3}{4},$ i.e.,
$\frac{-7}{4}\text{ is }\frac{-4}{7}$
View full question & answer
Question 381 Mark
Which of the following are rational number?
-3
Answer
-3 is a rational number because it is in the form of $\frac{\text{p}}{\text{q}},$ where p and q are integers and $\text{q}\neq0$
View full question & answer
Question 391 Mark
Write the following integers as a rational number. Write the numerator and denominator in each case.0
Answer
$0=\frac{0}{1},$ numerator = 0, denominator = 1
View full question & answer
Question 401 Mark
Write 'T' for true and 'F' for false for the following:
$\frac{-3}{5}$ is the largest among $\frac{-3}{5},\frac{-7}{10}$
Answer
True.Solution:
LCM of 5, 10 and 6 is 30
$\therefore\frac{-3\times6}{5\times6}=\frac{-18}{30}$
$\frac{-7\times3}{10\times3}=\frac{-21}{30}$
and $\frac{-5\times5}{-6\times5}=\frac{-25}{30}$
$\therefore\frac{-3}{5}$ is the largest among the given fractions.
View full question & answer
Question 411 Mark
Which of the two rational numbers is greater in the following pairs?
$\frac{5}{6}\text{ or }0$
Answer
$\frac{5}{6}\text{ or }0\frac{5}{6}$ is greater as any positive number is always greater than 0.
View full question & answer
Question 421 Mark
Write down the numerator and the denominator of the following rational numbers:
$\frac{5}{-8}$
Answer
Numerator = 5, denominator = -8
View full question & answer
Question 431 Mark
Write the following as a rational number with positive denominator:
$\frac{12}{-17}$
Answer
$\frac{12}{-17}=\frac{(-1)\times12}{(-1)\times(-17)}=\frac{-12}{17}$
View full question & answer
Question 441 Mark
Multiply:
$\frac{7}{6}\text{ by }24$
Answer
$\frac{7}{6}\text{ by }24$
$=\frac{7}{6}\times\frac{24}{1}$
$=\frac{7\times4}{1\times1}$
$=\frac{28}{1}=28$
View full question & answer
Question 451 Mark
Which of the following are rational number?
$\frac{-6}{11}$
Answer
$\frac{6}{11}$ is a rational number because it is in the form of $\frac{\text{p}}{\text{q}},$ where p and q are integers and $\text{q}\neq0$
View full question & answer
Question 471 Mark
Write the following as a rational number with positive denominator:
$\frac{11}{-6}$
Answer
$\frac{11}{-6}=\frac{(-1)\times11}{(-1)\times(-6)}=\frac{-11}{6}$
View full question & answer
Question 481 Mark
Write the following integers as a rational number. Write the numerator and denominator in each case.1
Answer
$1=\frac{1}{1},$ numerator = 1, denominator = 1
View full question & answer
Question 491 Mark
Multiply:
$\frac{3}{4}\text{ by }\frac{5}{7}$
Answer
$\frac{3}{4}\text{ by }\frac{5}{7}$
$=\frac{3}{4}\times\frac{5}{7}$
$=\frac{3\times5}{4\times7}$
$=\frac{15}{28}$
View full question & answer
Question 501 Mark
Write 'T' for true and 'F' for false for the following:
$\frac{-15}{-11}$ lies to the left of 0 on the number line.
Answer
False.Solution:
This is because $\frac{-15}{-11}=\frac{15}{11}$ which lies to the right of 0.
View full question & answer
1 Mark Question - Maths STD 7 Questions - Vidyadip