Answer:
B. 15"
Step-by-step explanation:
Factor them and find the common grouping
3/14
3 is prime so no factoring of this fraction
19/63, 63 is prime so no factoring
if ya wanted the least common denomenator then
14 and 63
14=2*7
63=7*9
so the least common denomenator would be 2*7*9=126
3/14 and 19/63 turns into 27/126 and 38/126
Answer:
7 groups
Step-by-step explanation:
1 hour = 60 minutes
3/4 of an hour = 3/4(60) = 45 minutes
therefore, 1 3/4 hours is 105 minutes
105 divided by 15 is 7
