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Chapter 1: Q480. (page 95)

Simplify the expression -718+512.

Short Answer

Expert verified

The simplified expression is 136.

Step by step solution

01

Step 1. Given information.

The given expression is-718+512.

02

Step 2. Find the LCD(Least Common Denominator) of 12 and 18.

Rewrite the 12 and 18 as the product of the primes and find the LCD.

12=2脳2脳318=2脳3脳3LCD=2脳2脳3脳3=36

03

Step 3. Rewrite each fraction as an equivalent fraction with the LCD. 

Simplify the expression.

-718+512=-7路218路2+5路312路3=-1436+1536=-14+1536=136

04

Step 4. Conclusion. 

The simplified form of the given expression is136.

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