Fractions And Decimals(7th Grade > Mathematics ) Questions and answers for exam Preparation

7th Grade > Mathematics

FRACTIONS AND DECIMALS MCQs

Fractions, Decimals

Total Questions : 227 | Page 11 of 23 pages

Question 101. Which of the following is a pair of like decimals?

0.2010, 0.21159
4.260, 4.9125
4.19, 4.625
9865.4946, 28.4900

Discuss Question

Answer: Option D. -> 9865.4946, 28.4900
:
D
Decimal numbers having the same number of decimal places, i.e. decimals having the same number of digits on the right of the decimal point, are known as like decimals.
In the option with the numbers9865.4946 and 28.4900, both decimal numbers have 4 digits in the decimal place.
Therefore, they are like decimals.
The rest of the options do nothave same number of decimal places.

Question 102. Arrange the following fractions in ascending order,
fractions:

\frac{12}{16}

\frac{4}{9}

and

\frac{6}{10}

610, 49, 1216
49, 610, 1216
1216, 610, 49
1216, 49, 610

Discuss Question

Answer: Option B. -> 49, 610, 1216
:
B
To compare the fractions, make the denominators equal.
For that, we have to find LCM of denominators

16, 9, 10

16 = 2 \times 2 \times 2 \times 2

9 = 3 \times 3

10 = 2 \times 5

LCM of [16, 9, 10] =

2 \times 2 \times 2 \times 2 \times 3 \times 3 \times 5 = 720

\frac{12}{16} = \frac{12 \times 45}{16 \times 45} = \frac{540}{720}

\frac{4}{9} = \frac{4 \times 80}{9 \times 80} = \frac{320}{720}

\frac{6}{10} = \frac{6 \times 72}{10 \times 72} = \frac{432}{720}

Comparing numerators,

\frac{320}{720} < \frac{432}{720} < \frac{540}{720}

∴ \frac{4}{9} < \frac{6}{10} < \frac{12}{16}

Question 103. What is the fraction of shaded petals in the given picture? .

Discuss Question

Answer: Option A. -> 37
:
A
The given figure has 7 equal parts out of which 3 are shaded.
Hence, the fraction of the shaded petals =

\frac{3}{7}

Question 104.

What fraction of the cubes are not yellow?

Discuss Question

Answer: Option D. -> 59
:
D
There total number of cubes=9
Number of red cubes = 3
Number of pink cubes = 2
Number of yellow cubes = 4
Number of cubes that are not yellow = 3 + 2 = 5
So, the fraction of cubes whichare yellow

= \frac{5}{9}

Question 105. How many one-fifths will make a whole?

Discuss Question

Answer: Option C. -> 5
:
C
One-fifth is one part of a whole, where the whole is divided into five equal parts. Hence, five one-fifths will make a whole.
We can also see it numerically below.

\frac{1}{5} + \frac{1}{5} + \frac{1}{5} + \frac{1}{5} + \frac{1}{5} = \frac{5}{5} = 1 w h o l e

Question 106.

\frac{5}{7} = \frac{?}{49}

Discuss Question

Answer: Option D. -> 35
:
D
Equivalent fractions are fractions which have the same value and are obtained by dividing or multiplying both the numerator and the denominator of a fraction by the same number.
Now,

49 \div 7 = 7

Therefore,

\frac{5}{7} = \frac{5 \times 7}{7 \times 7} = \frac{35}{49}

Hence, the missing number is 35.

Question 107.

What is the fraction of the unshaded part?

Discuss Question

Answer: Option A. -> 714
:
A
In the figure given above, there are 14 small triangles out of which 7 are unshaded.
Hence, the fraction can be represented by the unshaded portion =