Cups of flour

Jade was baking cupcakes for her class. She has 4 5/4 cups of flour.  For one batch, she used 1 2/3 cups of flour.  On another batch, she used 7/9 of a cup of flour.  How much flour does Jade have left after making the two batches of cupcakes?

Correct answer:

x =  2.8056

Step-by-step explanation:

f=454=4+54=4 4+54=214=5.25 a=123=1+23=1 3+23=531.6667 b=790.7778  x=fab=5.251.66670.7778=10136=22936=2.8056

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