3k/40 +k/18 factoring 40=2*2*2*5 18=2*3*3 LCD=2*2*2*5*3*3 LCD=360
120
LCD(3, 40) = 120
It is: 40
If that's 3/8 and 7/10, the LCD is 40.If not, it's 13490
LCD(32, 40) = 160
LCD(33, 40) = 1320LCD(33, 40) = 1320LCD(33, 40) = 1320LCD(33, 40) = 1320
40
1 = 1/1, 40 = 40/1 so LCD(1, 40) = 1.
LCD(5, 18) = 90
LCD(40, 50) = 200
40