ABC gifts

Arthur had 30 dollars to spend on three gifts. He spent 9 3/4 dollars on gift A and 4 1/2 dollars on gift B. How much money did he have left for gift C?

Correct answer:

C =  15 34 = 63/4 USD

Step-by-step explanation:

G=30 USD A=943=9+43=49 4+3=436+3=439=9.75 USD B=421=4+21=24 2+1=28+1=29=4.5 USD  A+B+C=G  S=A+B=439+29=439+418=439+18=457=14.25 USD  C=GS=30457=430 4457=4120457=412057=463=463 USD=1543 USD=15.75 USD

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