Question

Using appropriate properties find minus 3 by 7 into 14 by 15 into 7 by 12 into minus 30 by 35
write the property that used

Answer 1

Answer:

Hey mate.....

In the above picture, it is solved using appropriate property.

.........Hope it helps........

Step-by-step explanation:

Given : Expression \frac{2}{5}\times \frac{-3}{7} -\frac{1}{14}-\frac{3}{7}\times\frac{3}{5}

To find : The expression using appropriate properties ?

Solution :

\frac{2}{5}\times \frac{-3}{7} -\frac{1}{14}-\frac{3}{7}\times\frac{3}{5}

Applying commutative property, a+b=b+a

=\frac{2}{5}\times \frac{-3}{7}-\frac{3}{7}\times\frac{3}{5} -\frac{1}{14}

Applying distributive property, ab+ac=a(b+c)

=\frac{-3}{7}(\frac{2}{5}+\frac{3}{5})-\frac{1}{14}

=\frac{-3}{7}(\frac{5}{5})-\frac{1}{14}

=-\frac{3}{7}-\frac{1}{14}

Taking LCD and solve,

=\frac{-6-1}{14}

=\frac{-7}{14}

=\frac{-1}{2}

Therefore, \frac{2}{5}\times \frac{-3}{7} -\frac{1}{14}-\frac{3}{7}\times\frac{3}{5}=-\frac{1}{2}

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Answer 2

Answer:

what are the properties

Step-by-step explanation:

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