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    1.   I'll have my sushi 2/3 tuna and 1/3 avocado.
    2.   I'll have my sushi 4/7 tuna and 3/7 avocado.
    3.   I'll have my sushi 7/8 tuna and 1/8 avocado.
    4.   I'll have my sushi 1/4 tuna and 3/4 avocado