Chapter 2 · Class 7 ICSE · Formula Sheet

Fractions & Decimals Formulas — Class 7 ICSE

Perform advanced operations on fractions and decimals including multiplication and division.

Key Formulas

Multiplication

\dfrac{a}{b} \times \dfrac{c}{d} = \dfrac{ac}{bd}

Division

\dfrac{a}{b} \div \dfrac{c}{d} = \dfrac{a}{b} \times \dfrac{d}{c}

Reciprocal

\text{Reciprocal of } \dfrac{a}{b} = \dfrac{b}{a}

Worked Examples

1Using: Addition of Fractions

Add 2/5 + 3/10.

Step 1: LCM of 5 and 10 = 10.

Step 2: 2/5 = 4/10.

Step 3: 4/10 + 3/10 = 7/10.

Answer: 7/10

2Using: Mixed to Improper

Convert 3 1/4 to an improper fraction.

Step 1: = (3 x 4 + 1) / 4

Step 2: = 13/4.

Answer: 13/4

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More Class 7 ICSE Formulas

IntegersRational NumbersExponentsAlgebraic ExpressionsLinear EquationsRatio & Proportion

Frequently Asked Questions

How many formulas are in Class 7 ICSE Fractions & Decimals?+
There are 3 formulas in the Fractions & Decimals chapter for Class 7 ICSE. Each formula is essential for solving problems in this topic.
How to remember Fractions & Decimals formulas easily?+
Practice regularly with worked examples, group related formulas together, and use SparkEd's interactive practice mode to reinforce your memory through problem-solving.
Are these Fractions & Decimals formulas enough for exams?+
Yes, these formulas cover the complete ICSE Class 7 syllabus for Fractions & Decimals. Practice applying them to different types of questions for full exam readiness.

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