1.

16 by 15 + 20 by 50 + 50 by 60

Answer»

16/15 + 20/50 + 50/60

the LCM of 15 , 50, 60 will be= 300

so 16/15 x 300= 320

20/50 x 300 = 120

50/60 x 300 = 250

so 320+120+250/300=

79/30 =  around 2.66


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