Fractions + least common multiple (LCM) - practice problems
Number of problems found: 25
- A,B and
A, B, and C invested capital in the ratio 1/3 : 1/4 : 1/5. After 4 months, A withdraws half of his capital. If the yearly profit is Rs 8,470, find A's share. - Common denominators
Find the common denominator 5/6 and 1/3 - A person 3
A person distributes his pens among four friends A, B, C, and D in the ratio 1/3 : 1/4 : 1/5 : 1/6. What is the minimum number of pens the person should have? - Grand Pardubice Steeplechase
George decided to divide the winnings from the bet in Grand Pardubice Steeplechase (Velká Pardubická) between himself and his three younger brothers according to age in the ratio of 2:3:5:7. They paid each amount in whole crowns. One of the amounts was CZ - Toy car collection
Martin has more than 50 and fewer than 100 toy cars in his collection. A fifth of them are trucks, an eighth are vintage cars, and the rest are models of modern passenger cars. How many toy cars does Martin have in his collection, and how many of them are - Test Grade Distribution
There are more than 20 but less than 40 students in the class. A third of the pupils wrote the mathematics test with a one, a sixth with a two, and a ninth with a three. Nobody got a four. How many students in the class wrote the test on a five? - Peter crown ratio
Peter has only two crowns in the treasury and can divide them both in a ratio of 4:5 and in a ratio of 4:7. How many crowns does Peter have in the money box if the amount saved is less than 300 CZK? - LCD two fractions
What is the least common denominator of 11/15 and 12/19? - Ratio
Alena collected 7.8 kg of blueberries, 2.6 kg of blackberries, and 3.9 kg of cranberries. Express the ratio in the smallest natural numbers in this order. - Six people
Six people who get the same salary arrange them in increasing order of their savings and also mention who saves the most Anil 1/3. Duma 2/5. Niki 1/4.CAI 2/3. Kat 3/4. Boo 1/2. - Preparatory test
Less than 50 pupils go to 9A class. A third of the pupils wrote the preparatory test with a one, a quarter with a two, no one wrote with a three, and nine pupils with a four. How many students from 9A wrote the test with a five? - Reminder and quotient
Numbers A = 135 and B = 315 are given. Find the smallest natural number R greater than one so that the proportions R:A, R:B are with the remainder 1. - Fractions
Sort fractions z1 = (20)/(9); z2 = (10)/(21); z3 = (15)/(14) by their size. Write the result as three serial numbers 1,2,3. - The denominator Find unknown denominator in fraction inequality: 6/5>41/_>8/7
- Compare fractions
Find which is the larger of the two fractions: 11/32, 7/24 by expressing the numbers as: a) fractions with the same denominator; b) decimals. - LCD 2
The least common denominator of 2/5, 1/2, and 3/4 - Find b from LCM
The least common multiple of 2,190 and b is 13,140. What is b? - Lcd3
What is LCD of the equation of x/2 + 1/3=5/2? And what is x? - Compare three fractions Which of the three rational numbers is the largest? 1/7, 6/17, 4/17
- Determine 6
Determine the least common denominator 3/4 and -5/6
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