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Rohan has this chocolate bar. He eats 3/10 of it and gives 2/5 of the bar to his friend Kabir. How many pieces are left?

Class 6FractionsFractions
  • A4
  • B5
  • C3
  • D7

Step-by-Step Solution

The bar has pieces. He eats and gives , so pieces are left.
Answer: C) 3

Key idea: Comparing fractions

**Same denominator (like fractions)**: just compare the numerators. 5/7 > 3/7 because 5 > 3.

**Same numerator**: the bigger denominator means smaller pieces, so smaller value. 1/4 > 1/8 — the same one piece is bigger when the whole is split into fewer pieces.

**Neither same**: rewrite both with a common denominator (a denominator both fractions can share, often the LCM of the two denominators). Then compare numerators.

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