The questions on 4th grade math practice 5 are based on finding factors, common factors, multiples, common multiples, and many more questions on fractions such as finding largest fractions, arranging fractional number, changing fractions, finding equivalent fractions, reducing fractions to its lowest terms and word problems on fractions.
1. (a) Use multiplication to find the factor of 48.
(b) Use division to find the factor of 28.
2. Find the common factor of 30, 45. Which is the greatest common factor?
3. (a) Find any multiple of 6, 9, 12.
(b) Find the common multiple of 6, 9, 12.
4. Which is the largest fraction?
(a) ³/₈, ³/₉, ³/₁₀, ³/₁₁
(b)Write the above fractional number in
(i) ascending order
(ii) descending order
5. Change the following improper fractions into mixed numbers or whole numbers.
¹⁹/₄ ; ¹⁷/₅ ; ⁹/₃ ; ¹⁵/₄
6. Change the mixed numbers into improper fraction.
2³/₅ ; 4⁵/₆ ; 7²/₉ ; 5⁵/₈
7. Write the equivalent fractions for
²/₉ = \(\frac{.....}{36}\);
⁵/₆ = \(\frac{25}{.....}\);
⁴/₇ = \(\frac{.....}{35}\);
¹/₄ = \(\frac{9}{.....}\)
8. Reduce to the lowest term
⁴²/₅₄ ;
⁵²/₇₆ ;
⁹⁶/₁₀₈ ;
⁷²/₉₀
9. Raju did ¹/₆ of his homework in the afternoon and ³/₆ of it in the evening.
How much homework is still to be done?
10. Draw a square of sides 6 cm. Now divide this square into 9 square of 2 cm each. Fill the 9 squares with the digits 4, 5, 6 so that every column has the same sum (as in a magic square).
Answers of 4th grade math practice 5 are given below to check the exact answers of the above questions on factors, multiples and fractional numbers.
1. (a) 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
(b) 1, 2, 4, 6, 7, 8, 14, 28
2. 3 and 5; 5
3. (a) 36, 48, 60
(b) 36
4. (a) ³/₈
(b) (i) ³/₁₁, ³/₁₀, ³/₉, ³/₈
(ii) ³/₈, ³/₉, ³/₁₀, ³/₁₁
5. 4³/₄, 3²/₅, 3, 3³/₄
6. ¹³/₅, ²⁹/₆, ⁶⁵/₉, ⁴⁵/₈
7. ⁸/₃₆;
²⁵/₃₀;
20/₃₅;
⁹/₃₆
8. ⁷/₉;
¹³/₁₉;
⁸/₉;
⁴/₅
9. ¹/₃
10.
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