Respuesta :

the lcm is 72 hence the fractions are 15/72 & 28/72
Reed11, the common denominator for 5/24 and 7/18 is 1, 2, 3, and 6. 1x24=24 and 1x18=18, 2x9=18 and 2x12=24, 3x6=18 and 3x8=24, 6x4=24 and 6x3=18.