Question

(-7/21×-3/14) - (5/14×-4/15)

Answer 1

SOLUTION

TO DETERMINE

$\displaystyle \sf{ \bigg( \frac{ - 7}{21} \times \frac{ - 3}{14} \bigg) -\bigg( \frac{ 5}{14} \times \frac{ - 4}{15} \bigg) }$

EVALUATION

Here the given expression is

$\displaystyle \sf{ \bigg( \frac{ - 7}{21} \times \frac{ - 3}{14} \bigg) -\bigg( \frac{ 5}{14} \times \frac{ - 4}{15} \bigg) }$

We solve it as below

$\displaystyle \sf{ \bigg( \frac{ - 7}{21} \times \frac{ - 3}{14} \bigg) -\bigg( \frac{ 5}{14} \times \frac{ - 4}{15} \bigg) }$

$\displaystyle \sf{ = \bigg( \frac{7}{21} \times \frac{ 3}{14} \bigg) + \bigg( \frac{ 5}{14} \times \frac{ 4}{15} \bigg) }$

$\displaystyle \sf{ = \frac{ 1}{14} + \frac{ 2}{21} }$

$\displaystyle \sf{ = \frac{3 + 4}{42} }$

$\displaystyle \sf{ = \frac{7}{42} }$

$\displaystyle \sf{ = \frac{1}{6} }$

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

1. Find a number whose 6 1/4% is 12

https://brainly.in/question/24604085

2. a number is decreased by 10% and then increased by 12% find the net increase or decrease percent

https://brainly.in/question/32968202

3. In an election between two candidates, 20 % of the voters didn't vote and 160 votes are declared invalid. The winner get...

https://brainly.in/question/11142307

Answer 2

Answer:

(-7/21×-3_14)-(5-/14×-4/15)