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How do you determine the LCM using a venn diagram?
I've never found Venn diagrams all that useful. To draw one successfully, you already have to know the answer. But here goes... Example: 30 and 42 30, 60, 90, 120, 150, 180, 210 42, 84, 126, 168, 210 These are lists of multiples of 30 and 42 respectively, that would be placed in two circles. The number 210 would be placed in the center where they intersect.
What is 28 over 42 simplified?
28/42 = 2/3
What is the LCM of 14 28 42?
LCM of 14 28 42 is 84.
28 percent of what number is 42?
150 (42/0.28) To answer a problem such as this use the formula: a % #/100 = is/of (a % # over '100' b/c the most you can have is 100%) [equation reads, "a percentage number over 100 equals 'is' over 'of'"] So in your case it would be: 1) 28/100 = 42/x (then you cross multiply which gives you): [you have the 'is' as your original question states "is 42." You are trying to find the 'of'] 2) 28x = 4200 (then divide 4200 by 28 to solve for x) x=150 Then to check your answer, plug 150 into the x in the original equation and make sure both sides equal each other. So: 28/100= .28 & 42/150= .28
What is the gcf of 14 and 28 and 42?
GCF(14, 28, 42) = 14.
