One third of 420 is equal to 140. To find one third of a number, you divide the number by 3. In this case, dividing 420 by 3 gives you 140. Therefore, one third of 420 is 140.
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420
420 ÷ 6 = 70
420 hg equals how much cg
You can write a simple equation: x + (x+1) = 420, where x is the first number. Alternatively, you can make x the second number and write x + (x - 1) = 420. Using the first one, x + x + 1 = 420, so 2x + 1 = 420. 2x = 419 (subtract 1), so x = 209.5. You can check this answer: 209.5 + 210.5 = 420.
The LCM is 420.