Math Drills
Multiplying 3 Fractions
C-1Word Problems (Amount per Unit)
What this worksheet covers
Grade 6 (Elementary School) / Multiplication of Fractions / Multiplying 3 Fractions
The center is calculation multiplying three fractions in a row, with word problems in three shapes laid on top: a question applying a percentage twice over, a question multiplying a whole number by two fractions so that the answer comes out whole, and a question using parentheses to gather a sum or a difference into one expression.
In the question gathering into one expression with parentheses, the parentheses get dropped, the first two are multiplied, and the rest is added or subtracted afterward. A paper that went correctly always keeps a stage where what stood inside the parentheses was gathered into a single fraction.
The procedure of producing a product while simplifying is complete here. That procedure works as the part after a division has been rewritten as a multiplication, in Fraction ÷ Whole Number and Whole Number ÷ Fraction.
- 3 Terms, Per-Unit Quantity (Sum and Difference)5 questions
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Problems and answers on this worksheet
These are the problems in “Multiplication of Fractions”, shown with their answers.
(1)There is some juice where 1L weighs 1/4kg. At first there was 3/2L, but 1L was used. What is the weight of the rest in how many kg? Answer □
Answer: 1/8kg
(2)There is some water where 1L weighs 1/4kg. At first there was 1/2L, but 1/9L was used. What is the weight of the rest in how many kg? Answer □
Answer: 7/72kg
(3)There is some water where 1L weighs 5/9kg. At first there was 7/6L, but 1/3L was used. What is the weight of the rest in how many kg? Answer □
Answer: 25/54kg
(4)There is 2/3kg of flour per 1L. We used 1/3L yesterday and 4/5L today. What is the total weight of what we used, in how many kg? Answer □
Answer: 34/45kg
(5)There is 2/3kg of rice per 1L. We used 2/3L yesterday and 1/5L today. What is the total weight of what we used, in how many kg? Answer □
Answer: 26/45kg
What to do next
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