(i) \(\frac{2}{5}\)× 5 \(\frac{1}{4}\) = \(\frac{2}{5}\) × \(\frac{21}{4}\) =\(\frac{21}{10}\)
This is an improper fraction and it can be written as a mixed fraction as 2\(\frac{1}{10}\)
(ii) 6 \(\frac{2}{5}\) ×\(\frac{7}{9}\)= \(\frac{32}{5}\) × \(\frac{7}{9}\) =\(\frac{224}{45}\)
This is an improper fraction and it can be written as a mixed fraction as 4 \(\frac{44}{45}\)
(iii) \(\frac{3}{2}\)× 5 \(\frac{1}{3}\) = \(\frac{3}{2}\) ×\(\frac{16}{3}\) = 8
This is a whole number.
(iv) \(\frac{5}{6}\)× 2 \(\frac{3}{7}\) = \(\frac{5}{6}\)× \(\frac{17}{7}\)= \(\frac{85}{42}\)
This is an improper fraction and it can be written as a mixed fraction as 2 \(\frac{1}{42}\)
(v) 3 \(\frac{2}{5}\) × \(\frac{4}{7}\) = \(\frac{17}{5}\)× \(\frac{4}{7}\) = \(\frac{68}{35}\)
This is an improper fraction and it can be written as a mixed fraction as 1 \(\frac{33}{35}\)
(vi) 2 \(\frac{3}{5}\) × 3 = \(\frac{13}{5}\)× 3 = \(\frac{39}{5}\)
This is an improper fraction and it can be written as a mixed fraction as 7 \(\frac{4}{5}\)
(vii) 3\(\frac{4}{7}\) ×\(\frac{3}{5}\) = \(\frac{25}{7}\)×\(\frac{3}{5}\)= \(\frac{15}{7}\)
This is an improper fraction and it can be written as a mixed fraction as 2\(\frac{1}{7}\)
Match the items given in Column I with one or more items of Column II.
Column I | Column II |
(a) A plane mirror | (i) Used as a magnifying glass. |
(b) A convex mirror | (ii) Can form image of objects spread over a large area. |
(c) A convex lens | (iii) Used by dentists to see enlarged image of teeth. |
(d) A concave mirror | (iv) The image is always inverted and magnified. |
(e) A concave lens | (v) The image is erect and of the same size as the object. |
- | (vi) The image is erect and smaller in size than the object. |