Answer:
Step-by-step explanation:
3)A fence is made up of eight 8 5/7-foot sections. This means the total number of feet's is 8 × 8 5/7. Expressing 8 5/7 as improper fraction, it will be 61/7 feet's
The total length of the fence =
8 × 61/7 = 488/7 feet's
Expressing as mixed fraction, it becomes
69 5/7 feets
4) Cynthia spent 3/4 of her time at the gym on the stair machine. She spent a total of 21 3/4 minutes on the stair machine. This means that the time she spent on the gym is 3/4 × 21 3/4 .
Converting 21 3/4 to improper fraction, it becomes 87/4
The time she spent on the gym
= 3/4 × 87/4 = 261/16
= 16 5/16 minutes
5) On Monday, Ryan jogged 1 ½ miles in ¼ hour. On Wednesday he jogged 2 1/3 miles in 1/3 hour. Converting to improper fractions,
the miles ran on Monday= 1 ½ miles = 3/2 miles
the miles jogged on wednesday = 2 1/3 miles = 7/3 miles
How much farther did Ryan jog on Wednesday than on Monday? This would be 7/3 - 3/2
= 5/6 miles
6) One requires 2/3 cup of flour, another requires 7/8 cup of flour, and the third require 3/4 cup of flour.
Total amount of flour that Josh will use is
2/3 +7/8 +3/4 = (16+21+18)/24
= 55/25 = 2 7/25 cups of flour
