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BANKERS TUTORIAL · IBPS & RRB · ORIGINAL PRACTICE & ANALYSIS

Practice & review: Fractions, decimals and mental benchmarks

Convert familiar fractions into decimals and percentages, use benchmark values to compare quantities and keep the whole-number base visible when a fractional share must be turned into an amount.

01 / 03Learn with a clear direction

2 min read Original learning material · Prepared 14 Oct 2026

The worked question on this page is original educational practice. It is not represented as a question from an official previous-year examination paper.

01 / UNDERSTANDING

Review the question

Create original questions that give a fraction in one form and request another. Include a separate total only when asking for an amount, making the distinction between share and count explicit.

02 / UNDERSTANDING

The concept in context

Comparisons may use common denominators or cross-products when denominators are positive. Avoid rounding so early that close fractions become indistinguishable. Negative values require particular care because intuition based only on numerator size can fail. For ordinary positive share questions, estimate the fraction’s position between zero and one before computing the exact amount.

03 / UNDERSTANDING

A worked learning case

Original educational case. An original practice plan assigns three eighths of 160 questions to arithmetic. One eighth is 20, so three eighths is 60. The fraction equals 0.375 or 37.5%. Writing the base of 160 prevents the learner from treating 37.5% as a fixed number of questions independent of the total workload.

ORIGINAL EDUCATIONAL PRACTICE

Try it before you check.

Original practice: What percentage is 3/8?

Show the answer and reasoning

37.5%.

Divide 3 by 8 to obtain 0.375, then multiply by 100 to express it as a percentage. Alternatively, one eighth is 12.5%, so three eighths is 37.5%. The result is below one half, or 50%, which is a quick benchmark confirming that the decimal has been placed sensibly.

Two traps to watch for.

  • Treating a fraction’s percentage as an absolute quantity.
  • Rounding close fractions before deciding which is larger.

YOUR TOPIC-SPECIFIC LEARNING MAP

Learn from the attempt

  1. Recall halves, quarters and eighths.

  2. Convert one fraction three ways.

  3. Check each amount against its named base.

Explain the idea, apply it to a new situation, then check what changed in your reasoning.

BANKERS TUTORIAL · SOURCE NOTES

Keep the source alongside your notes.

Official links provide subject context and authoritative reference material. This guide’s explanation, scenario and question are original Bankers Tutorial learning content.

  1. www.ibps.in https://www.ibps.in/
  2. www.ibps.in https://www.ibps.in/index.php/faq/

For IBPS & RRB preparation, check the current official notice before relying on changing dates, rules or examination requirements.

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