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 10 pieces. He eats 103×10=3 and gives 52×10=4, so 10−3−4=3 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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