Vistor Chow wal keung and RC Yadav Solutions for Chapter: Rational Numbers, Exercise 4: EXERCISE

Verify that the commutative property does not hold true for the division of the following set of rational numbers.

Verify that the associative property holds true for the multiplication of the following sets of rational numbers.

$\frac{2}{7}, \frac{5}{8}, \frac{7}{10}$

Verify that the associative property holds true for the multiplication of the following sets of rational numbers.

Verify the distributive property of multiplication over addition.

$\frac{4}{5}\left(\frac{3}{7}+\frac{2}{3}\right)=\frac{4}{5}\times \frac{3}{7}+\frac{4}{5}\times \frac{2}{3}$

Verify the distributive property of multiplication over subtraction.

Find the additive inverse of the following rational number.

$9$

Find the additive inverse of the following rational number.

Jaspreet, Kiran and Lisa swim laps in the community swimming pool. They take two-thirds of an hour, five-sixths of an hour and four-fifths of an hour, respectively, to complete one lap. Who takes the least time to complete a lap?