360
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It is: 1800
LCM for 45 and 90 is 90.
The LCM is: 90It is 90 because 6*15 = 90, 2*45 = 90 and 1*90 = 90
The LCM is 360.
To find the LCM, you need to have the denominators equal to each other. In this case the LCM is 90, so the fractions are as follows: 45/90 40/90 and 54/90.