Question

The mass of a box of bolts is 3/4 kg and the mass of a box of screws is 3/5 kg.

Answer 1

Answer:

a) The mass of a box of bolts is greater.

b) 3/20 kg

Step-by-step explanation:

a) Firstly, you have to make the denominators of the two fractions the same (by finding the LCM of the denominators).

The LCM of 4 and 5 is 20.

Converting 3/4 into denominator 20:

$\frac{3 * 5}{4 * 5}$

= 15/20

Converting 3/5 into denominator 20:

$\frac{3 * 4}{5 * 4}$

= 12/20

Now comparing the numerators:

15 > 12

Hence,

3/4 > 3/5

b) Difference of the boxes can be done by subtracting the numbers with the same denominator:

15/20 - 12/20

= 3/20 kg

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