The amount in pounds of coffee he needs is [tex]\frac{3}{4}[/tex] pounds.
He ran out off coffee in his café. He went to the store to buy 1 1/2 pounds of coffee . He has already put 3/4 pounds of coffee into his shopping cart. The amount of coffee he needs can be calculated below
amount of coffee needed = [tex]1\frac{1}{2} - \frac{3}{4}[/tex]
Note:
[tex]1\frac{1}{2} = \frac{3}{2}[/tex]
Therefore,
amount of coffee needed = [tex]\frac{3}{2} - \frac{3}{4} = \frac{6-3}{4}[/tex]
amount of coffee needed = [tex]\frac{3}{4}[/tex] pounds
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