What is 12 8/15 - 7 + 7/15 + 15 in simplest form?
To simplify the expression 12 8/15 - 7 + 7/15 + 15, follow these steps:
1. Convert the mixed number 12 8/15 to an improper fraction:
12 8/15 = (12 * 15 + 8)/15 = 188/15
2. Add the fractions together:
188/15 - 7 + 7/15 + 15
3. Find a common denominator, which in this case is 15:
(188 - 7*15 + 7 + 15*15)/15 = (188 - 105 + 7 + 225)/15 = 315/15
4. Simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 15:
(315/15) ÷ (15/15) = (315/15) ÷ 1 = 21
Therefore, 12 8/15 - 7 + 7/15 + 15 simplifies to 21.
JoJo had 1 1/2 cups or sugar. She used 3/4 cup for her cookies. How much does she have left?
To find out how much sugar JoJo has left, follow these steps:
1. Convert the mixed number 1 1/2 to an improper fraction:
1 1/2 = (1 * 2 + 1)/2 = 3/2
2. Subtract the amount of sugar used from the original amount:
3/2 - 3/4
3. Find a common denominator, which in this case is 4:
(3/2) - (3/4) = (6/4) - (3/4) = 3/4
4. Simplify the fraction if possible, which in this case is already simplified.
Therefore, JoJo has 3/4 cups of sugar left.
-18.1 + 5 = -13.1, right?
No, -18.1 + 5 is not equal to -13.1.
To find the sum of -18.1 and 5, add the two numbers together:
-18.1 + 5 = -13.1
Therefore, the correct sum is -13.1.
Uh ok. What is -189.987 - 30.87?
To find the difference between -189.987 and -30.87, follow these steps:
-189.987 - 30.87 = -220.857
Therefore, the result is -220.857.