Keshia ran 10 1/2 miles in 1 3/4 hours. Mateo ran 12 miles in 2 2/5 hours. Who ran faster

To figure out who ran faster, we need to compare their speeds. Speed is calculated by dividing the distance traveled by the time taken.

Keshia's speed is calculated as 10 1/2 miles / 1 3/4 hours:
= (21/2) miles / (7/4) hours
= (21/2) * (4/7) miles/hour
= 42/7 miles/hour
= 6 miles/hour

Mateo's speed is calculated as 12 miles / 2 2/5 hours:
= 12 miles / (12/5) hours
= 12 * (5/12) miles/hour
= 5 miles/hour

Comparing the speeds, we can see that Keshia ran faster than Mateo.