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Fractions & Decimals — Chapter Test

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Q1
What is the reciprocal of ⅖?
Turn it upside down: 5/2.
Q2
What is ½ ÷ ½?
Any non-zero number divided by itself is 1.
Q3
Which is the odd one out (three are equal to ¾)?
4/6 = ⅔, not ¾.
Q4
What is 0.5 × 0.2?
5 × 2 = 10, with two decimal places: 0.10 = 0.1.
Q5
What is ⅔ × ⅗?
(2 × 3)/(3 × 5) = 6/15 = ⅖.
Q6
What is ¾ ÷ ½?
¾ × 2/1 = 6/4 = 1½.
Q7
What is the reciprocal of 8?
The reciprocal of 8 is ⅛.
Q8
What is 2.5 × 4?
2.5 × 4 = 10.
Q9
What is 7.2 ÷ 0.8?
Multiply both by 10: 72 ÷ 8 = 9.
Q10
What is 0.25 × 100?
Move the point two places right: 25.
Q11
A ribbon 4½ m long is cut into ¾ m pieces. How many pieces are there?
4.5 ÷ 0.75 = 6 pieces.
Q12
A pen costs ₹2.50. What do 6 pens cost?
2.50 × 6 = ₹15.
Q13
What is ⅔ × ¾ × ⅘?
⅔ × ¾ = ½, then ½ × ⅘ = 4/10 = ⅖.
Q14
What is 12.5 ÷ 0.25?
Multiply both by 100: 1250 ÷ 25 = 50.
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