10
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
3
3 and 1/2 of them
7 tenths is bigger because if you made 2 fifths into tenths it would be 4 fifths as 10 is doule of 5
one 2/10 = 1/5
1 1/2
1 2/5
1/2
22 tenths
7.4or 74 tenths
3/10 + 1/5 = 1/2
It would be two fifths turned into tenths which is two tenths - (when you turn fifths into tenths, you multiply it by 2 so you do the same with the numerator.) You do not change the denominator so you subtract the numerators 2-1=1. The answer is one tenth.