15
5 factors into 1 and 5 6 factors into 2 and 3 Therefore, the least common multiple is 1*2*3*5 = 30 This is what you would use for the LCD, convert the fifths and sixths into thirtieths.
2/12=1/6 The LCD of 1/6 and 3/4=The LCD of 1/6 and 1/4=12 Therefore, 2/12 and 9/12 have the same denominator. They are equal to the original fractions. LCD=12
If that's 84 and 35, the LCD is 420.If that's 8/4 and 3/5, the LCD is 20.
You need at least two fractions to find a common denominator.
10
To convert 2 to fifths, we multiply by 5 to get 10 fifths. Adding the one fifth gives us a total of 11 fifths. To find how many tenths are in 11 fifths, we multiply by 2 to get 22 tenths. Therefore, there are 22 tenths in 2 and one fifth.
3
3 and 1/2 of them
one 2/10 = 1/5
1 1/2
NO!!!! 2/10 = 1/5 NOT 2/5
1 2/5
1/2
7.4or 74 tenths
There are two fifths in four tenths.
3/10 + 1/5 = 1/2