N=4
Remove the parentheses, move the terms, collect like terms,calculate, divide both sides
The answer to your question is 2/3 because there are 2 cups and 2/3 of buttermilk meaning 33.3333.. so it would be 20/30 then 2/3
The lest common multiple is 26. If you do multiples of each number
13:13,26
26: 26
Both of their lest common multiples would be 26
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