1.) 5/6 = 15/18
n/6 = 15/18
reduce the fraction with 3:
n/6 = 5/6
set the numerators equal:
n = 5
2.) 2/3 = 16/24
n/3 = 16/24
reduce the fraction with 8:
n/3 = 2/3
set the numerators equal:
n = 2
3.) 3/5 = 9/15
3/5 = n/15
cross-multiply:
45 = 5n
swap the sides:
5n = 45
divide both sides:
n = 9
4.) 1/6 = 2/12
n/6 = 2/12
reduce the fraction with 2:
n/6 = 1/6
set the numerators equal:
n = 1
5. 4/5 = 16/20
n/5 = 16/20
reduce the fraction with 4:
n/5 = 4/5
set the numerators equal:
n = 4
6. 1/2 = 4/8
1/2 = n/8
cross-multiply:
8 = 2n
swap the sides:
2n = 8
divide both sides:
n = 4
