Write these fractions appropriately as additions or subtractions:
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(a) Total number of parts each rectangle has = 5
No. of shaded parts in the first rectangle = 1 i.e 1 / 5
No. of shaded parts in the second rectangle = 2 i.e 2 / 5
No. of shaded parts in the third rectangle = 3 i.e 3 / 5
Clearly, the fraction represented by the third rectangle = Sum of the fractions represented by first and second rectangle
Hence, 1 / 5 + 2 / 5 = 3 / 5
(b) Total number of parts each circle has = 5
We may observe that the first, second and third circles represent 5, 3 and 2 shaded parts out of 5 equal parts respectively. Clearly, fraction represented by the third circle is the difference between the fractions represented by the first and second circles.
Hence, 5 / 5 – 3 / 5 = 2 / 5
(c) Here we may observe that first, second and third rectangles represents 2, 3 and 5 shaded parts out of 6 equal parts, respectively. Clearly, fraction represented by the third rectangle is the sum of fractions represented by the first and second rectangles.
Hence, 2 / 6 + 3 / 6 = 5 / 6