Answer:
8/3 or 6 2/3 cup
Step-by-step explanation:
2/3 times 4/1 = 8/3 or 6 2/3
suppose 4:4:7 be 4x, 4x, 7x
or, 15x = 180°
or, X = 180/15
or, X = 12
therefore,
4x = 4x12= 48
4x= 4x12= 48
7x= 7x12= 84
so if you plus all of them you get 180
3,6,9,12,15,18,21,24,27,30...
7,14,21,28,...