Subtraction of Rational Numbers
Subtraction of rational numbers involves the process of finding the difference between two rational numbers. Rational numbers are those that can be expressed as a fraction, where the numerator and denominator are integers. When subtracting rational numbers, the key is to ensure that the denominators are the same, making it possible to directly subtract the numerators. If the denominators are different, they must first be made equivalent through a common denominator. This process simplifies the subtraction, resulting in a rational number as the final answer. Understanding this fundamental operation is essential in various mathematical contexts.
Questions
- Fatima wants to purchase a scarf for #$45.00# and a sweater for #$77.50#. If she currently has #$100#, how much more money does she need to purchase the two items?
- How do you calculate #6 1/8-(5-1 2/3)#?
- Beven has a collection of 72 music CDs. One-sixth of the CDs are dance music 1/4 are hip hop, and 3/8 are reggae. The rest of the CDs are rock music. What fraction of her CDs are rock music?
- How do you simplify #47-14 3/7-11 2/21#?
- How do you subtract #-1/10-2/5#?
- How do you simplify #3 5/9 - 2 11/12#?
- What is the difference of 12.98 - 6.098?
- How do you estimate #5 1/3-3 5/6#?
- How do you simplify # 3/5 - 5/10#?
- What do you add to 5 4/7 to make 7?
- Kira gives a cashier a $50 bill. She is buying an item for $8.84. How much money should Kira get back?
- Pam walks 7/8 of a mile to school. Paul walks 1/2 of a mile to school. How much farther does Pam walk than Paul?
- How do you solve #7,493.4-45.29#?
- How do you simplify #4/5-4/7#?
- Sammy is 60 3/8 inches tall. His younger sister Sophie is 6 1/4 inches shorter. How tall is Sophie?
- How do you simplify #8 3/8-2 1/5#?
- What is #5 1/4# minus #2 3/8#?
- Joe has eaten 2/5 of a pizza. Jane has eaten 1/7 of a pizza. How many times more pizza has Joe eaten than Jane?
- What is 5 5/8-4 1/4?
- George weeded 2/5 of the garden and Tiffany weeded some, too when they were finished, 4/15 of the garden still needed to be weeded. What fraction of the garden did Tiffany weed?