Within the GarageBand app have a look at the drum beat sequencer. Ensure that is is set to a 4/4 time signature in settings before you start. Experiment with equivalent fractions to design your own drumbeat sequence. Show me in at least one of the four bars (16beats) that you know that 1/4 =2/8=4/16 Upload your project as a GarageBand project, not a song so I can see and hear your equivalent fractions. Press the green check to add it to your fractions folder. Thank you.