Plz answer it hard for me rodrigo practiced playing the guitar 15 1/3 hours over the past 3 weeks. he practices for 6 1/4 hours during the first week and 4 2/3 hours during the second week. how much time did rodrigo spend practicing during the third week? use the numbers and symbols to write an equation, symbols may be used more that once. symbols and numbers : 15 1/3, 6 1/4, 4 2/3, x(times), =, +.