If you would like to know how many times must Alma measure 1/4 cup of water to have enough for all of the tortillas, you can calculate this using the following steps:
each batch ... 3/4 cup of water = 3 * 1/4 ... 3 times for each batch
3 batches of tortillas ... 3 * 3 = 9 times for 3 batches
Result: Alma will have to measure 9 times.