50
70
The Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions. I assume the 7 and 21 are the denominators of two fractions you need to add or subtract.LCD(7, 21) = 21.
28
Seven tenths times five sevenths is calculated by multiplying the numerators and the denominators. So, (7/10) * (5/7) = (7 * 5) / (10 * 7) = 35/70. This fraction simplifies to 1/2.
Only 1.
As the denominators are the same (they are all 10), they can be ordered by comparing their numerators: 1 < 3 < 4 < 7 → 1/10 < 3/10 < 4/10 < 7/10 ie the order from least to greatest is: one tenth, three tenths, four tenths, seven tenths.
8/9, 5/12, 6/7
They are not fractions, so they do not have denominators.
The Least Common Multiple (LCM) for 7 14 10 is 70.
The common denominator of any two or more whole numbers will always be 1.
Denominators can only be found in fractions. 105 and 63, therefore, cannot have common denominators. * * * * * 21 and any multiple of 21.
In order to solve this, you must first make the denominators equivalent. the lowest common denominator of thes two s ninety. multiply 4/9 ny ten to get 40/90, and multiply 7/10 by nine to get 63/10. you can now see that seven tenths is greater.