Topic Details (Notes format)

How to Multiply Fractions

Subject: Mathematics

Book: Maths Mastery

Multiplying fractions is often simpler than addition or subtraction because you do not need a common denominator. The formula is straightforward: (a/b) × (c/d) = (a×c) / (b×d). For example, (2/3) × (3/4) = (2×3)/(3×4) = 6/12, which simplifies to 1/2. You can also simplify before multiplying if there are common factors. This technique is vital in probability (calculating independent events), scaling recipes, and analyzing proportions. Mastering fraction multiplication bolsters your skillset for advanced topics like rational algebraic expressions and real-world calculations.

Practice Questions

If the sides of a triangle are 6 cm, 8 cm, and 10 cm, what is the area of the triangle?

View Question

A man invests Rs. 5000 at 5% per annum simple interest. What is the total amount after 3 years?

View Question

A sum of money triples itself in 12 years at simple interest. What is the rate of interest per annum?

View Question

If a + b = 10 and ab = 21, what is the value of a^2 + b^2?

View Question

What is the length of the diagonal of a square with a side length of 7 cm?

View Question

A man rows downstream at 6 km/h and upstream at 4 km/h. What is the speed of the stream?

View Question

If a+b = 10 and ab = 21, what is the value of (a-b)^2?

View Question

If the sum of the squares of two consecutive positive integers is 365, what are the integers?

View Question

If a number is divisible by 9, it is also divisible by which of the following?

View Question

If a square has a perimeter of 64 cm, what is its area?

View Question