Insert one pair of bracket to make this calculation correct . 7 - 5 - 3 + 4 = 9
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LCM stands for Least Common Multiple.
The LCM of two numbers is the lowest number that can divide into the two original numbers.
For most numbers, you can find the LCM by simply multiplying the two numbers:
The LCM of 7 and 13 will be 91.
