Marc took 3 hours (h) to mow a lawn while Angelina took 150 minutes (min) to mow the same lawn a week earlier. Write the ratio of Marc's time to Angelina's time as a ratio of whole numbers.

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When forming a ratio, it is important to remember that you MUST have the same units. So, in this problem, convert the hours to minutes:
3 hours = 3*60 = 180 minutes.
Now, compare Marc's minutes to Angelina's minutes, and write it as a fraction:
180/150
Reduce the fraction by dividing numerator and denominator by 30:
6/5
R^2

150/60=2.5 HOURS
3:2.5 NOW MULTIPLY BOTH TERMS BY 2 &YOU GET 3*2:2.5*2=6:5

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