Class VII Mathematics
Chapter 2: Fractions and Decimals
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Syllabus Sections
Key Formulas & Equations
Click Copy to duplicateFraction Division Reciprocal
\frac{a}{b} \div \frac{c}{d} = \frac{ad}{bc}
Multiplies dividend by reciprocal divisor.
Related Formulas from Adjacent Chapters
Distributive Property
a \times (b + c) = a \times b + a \times c
[From Integers] Distributes multiplication over addition.
Median (Odd N)
\text{Median} = x_{(N+1)/2}
[From Data Handling] Middle term of sorted dataset.
Range
\text{Range} = x_{max} - x_{min}
[From Data Handling] Difference between largest and smallest values.