kuuleiisrad
05.11.2020 •
Mathematics
It is 405 miles from Minneapolis, Minnesota to Chicago, Illinois. It is 692 miles from Minneapolis to Cincinnati, Ohio. Cincinnati is how many miles farther from Minneapolis than Chicago? Write an equation and solve the problem.
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Ответ:
Write the equation out.
2 + 3 ½ + ⅓ =?
First, convert the mixed fraction into an improper fraction. Multiply the whole number by the denominator and add the numerator.
3 ½ → 7/2
Next, write all the fractions under the common denominator. Ask yourself: What is the least common multiple of the numbers 2, 2, and 3? The LCM of those numbers is 3. Rewrite the fractions with the least coon denominator of 3.
2 → 12/6
7/2 → 21/6
1/3 → 2/6
Add all fractions together.
12/6 + 21/6 + 2/6 = 35/6
Write out 35/6 into a mixed fraction.
35/6 → 5 5/6
Solution: 5 5/6 cups of liquid
10) For this problem, all you have to do is divide 12 ½ by 4.
First, change 12 ½ into an improper fraction.
12 ½ → 25/2
So...
25/2 ÷ 4
Keep the first fraction, change the division sign, and flip the second fraction (it's basically 4/1).
25/2 × 1/4
Multiply across as usual.
25/8
Make this improper fraction into a mixed fraction.
25/8 → 3 ⅛
Solution: 3 ⅛ cups of soup per bowl