AC Lim's answer to aydan's Primary 5 Maths Singapore question.

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AC Lim
Ac Lim's answer
12510 answers (A Helpful Person)
1st
Shaded area = ½ × 21 × 119 = 1249.5
Area of rectangle= 119 × 62 = 7378

Fraction = 1249.5/7378 = 21/124

Or

Fraction = ½ × 21/62 = 21/124