The LCD of 2/7 and 4/5 is 35.
The least common denominator of 9 tenths and one forty fifths is 10.
The least common denominator is 60.
a least common (LCD) denominator is a least common multiple (LCM); only it's a fraction and it's LCM is in the denominator's place.
To subtract 3 fifths from 7 tenths, first convert both fractions to a common denominator. The least common denominator of 10 and 5 is 10. Convert 3 fifths to tenths, which gives us 6 tenths. Now, subtract: 7 tenths - 6 tenths equals 1 tenth. Therefore, 7 tenths minus 3 fifths is 1 tenth.
To subtract one-fourth from three-sevenths, you need a common denominator. The least common denominator between 7 and 4 is 28. Converting the fractions, three-sevenths becomes 12/28 and one-fourth becomes 7/28. Subtracting these gives 12/28 - 7/28 = 5/28. Thus, three-sevenths minus one-fourth equals 5/28.
4/7 and 3/5 have an LCD of 35 since they 7 and 5 have no common factors.
The least common denominator of 9 tenths and one forty fifths is 10.
21
28
Fourteenths (eight and seven)
60
15
5/7, 1/2, 3/5 LCM is 70
30 just30
the least common denominator of three fifths and two fifteenths and one sixth is 30. you multiply 15 by two, 6 by five, and 3 by ten.
The LCD of 2/3 and 4/5 is 15.
The least common denominator for those fractions is 60.