3 / 8 + 7 / 12, find lowest common denominator
8 = 2 * 2 * 2 = 2^3
12 = 2 * 2 * 3 = 2^2, 3^1
so 2*2*2*3 = lcm = 24
so 9 / 24 + 14 / 24 = 23 / 24
five over twelve is bigger than three over eight
3/8 ÷ 7/12 = 9/14
4
three and 5 over 8 = 7
two over three and eight over twelve
8/12 divided by 3/12 = 2.6667
4 over 8
13 over 14
Seven.
one over four >>>= two over eight , three over twelve and so on ........... :)
Twelve over seven as a mixed number = 15/7
1 and 1 over 16