Fractions in Disguise — Formula Sheet
CBSE · Class 8 · Mathematics
7 formulas from Fractions in Disguise (CBSE Class 8 Mathematics) on one page, grouped by topic. Covers Interest, Simple Interest Pattern.
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Formulas and Key Relations
1. Fractions as Percentages
y% of value = (y/100) × value
50% = 1/2 = 0.5
Ratio to percentage = (part/whole) × 100
4. Percentage Greater Than 100
165% of a value = 1.65 times that value
Key relations
For example, 3/4 = 75%.
Percentage increase = (amount of increase / original amount) × 100.
Percentage decrease = (amount of decrease / original amount) × 100.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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