2 will.
The only whole number that can go in both 5 and 42 is 1 since these numbers are co-prime.
252 is the LCM
7y-42=28 ==> 7y=42+28 => y=70/7. => 10
The largest whole number that can go into these three number, 28, 42, and 70 is:142 times 14 equals 283 times 14 equals 425 times 14 equals 70Or it could be 28 if you allowed non-whole numbers in the equation:1 times 28 equals 281.5 times 28 equals 422.5 times 28 equals 70
42 as that number is the smallest number that both 3 and 14 will go into.
Find factors that can go into both numbers. The most obvious that can do this is 2. So 84/166 = 42/83 No other number can go into both 42 and 83.
14 and 28 can both go into any multiple of 28 .
42, it has to be an even number because of the 2, so just methodically go through the 7 times table, eg 14, 28, 42
1 2 4 7 14 28
7 and 6 can go into 42 because of 7x6=42
63
6 with remainder 28.