Question | Answer |
LCD | least common denominator |
GCF | greatest common factor |
What is LCD of two or more fractions? | The smallest number that can be divided equally by each of the fractions denominators. |
How to determine the GCF? | The number that goes into both numbers evenly. |
How to find the LCD? | Multiply the denominators together and divide by the GCF. |
Find LCD of 2/9 + 3/12? | Multiply denominators (9x12)=108 then, divide by LCD which is 3 (108 divided by 3)=36 |
What is a Proper Fraction? | A fraction with the numerator smaller than the denominator. |
What does Simplify a fractions means? | To use all common factors to bring fraction to lowest terms. Example: 16/24 (4 is Common factor) ANSWER: 16/24 = 8/12 = 4/6 = 2/3 |
How to convert % to fraction? | Make a fraction with % as numerator and 100 as denominator. Simplify/reduce fraction if possible. |
A Percent converted to a fraction | 7% = 7/100 |
How to convert decimals to percents? | Multiply decimal by 100 or move decimal 2 places to right and add % sign to answer. |
A decimal converted to percent | 0.39 = 0.39x100=39% |
How to convert percent to decimal? | Divide % by 100. Round answer if needed. |
A percent converted to decimal | 83% = 83 divided by 100 = 0.83 |
How to find the percent of a number? | Divide first number by second number. Multiply answer by 100 or simply move decimal 2 places to right. Round answer and follow with a % sign. |
68 is what % of 87 | 78% |
75% of 24 km? | 18 |
What is sale price of a $20.00 item discounted by 25%? | $15.00 |