Question

Rewrite the fractions as a common denominator


4/5 and 2/9

Answer 1

46/45

Explanation:

• first find the lower common multiple of the both denominators:

for example :

x9 = 9, 18 , 27, 36, 45, 54, 63, 72, 81, 90, 99, 108

x5 = 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60

since there are 45 both in the 9 and 5 times table, the denominator of the both fractions is 45. (5 * 9 = 45 and 9 * 5 = 45)

• times the nominator by the number of times you got from the denominator:

for example:

4 * 9 = 36 | 2 * 5 = 10

then add it up:

36 + 10 = 46

then the answer is
`(46)/(45)`

(don't know if I explained it properly, its my first time explaining)