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Answer :

Time taken by Jaidev to walk across the school ground =\(2\frac{1}{5} \) = \(\frac{11}{5} \) minutes

Time taken by Rahul to walk across the school ground =
\(\frac{7}{4} \) minutes

\(\frac{11}{5} \) and \(\frac{7}{4} \)

By cross multiplication

11×4 and 5×7

44 > 35

\(\frac{11}{5} \) > \(\frac{7}{4} \)

\(\therefore \) Rahul takes less time than Jaidev to walk across the school ground

Difference = \(\frac{11}{5} \) - \(\frac{7}{4} \)

= \(\frac{11×4}{5×4} \) - \(\frac{7×5}{4×5} \)

= \(\frac{44}{20} \) - \(\frac{35}{20} \)

= \(\frac{9}{20} \)

- Q.1 Solve (a)\(\frac{2}{3} + \frac{1}{7} \) (b)\(\frac{3}{10} + \frac{7}{15} \) (c) \(\frac{4}{9} + \frac{2}{7} \) (d) \(\frac{5}{7} + \frac{1}{3} \) (e) \(\frac{2}{5} + \frac{1}{6} \) (f) \(\frac{4}{5} + \frac{2}{3} \) (g) \(\frac{3}{4} - \frac{1}{3} \) (h) \(\frac{5}{6} - \frac{1}{3} \) (i) \(\frac{2}{3} + \frac{3}{4} + \frac{1}{2} \) (j) \(\frac{1}{2} + \frac{1}{3} + \frac{1}{6} \) (k) \(1\frac{1}{3} + 3\frac{2}{3} \) (l) \(4\frac{2}{3} + 3\frac{1}{4} \) (m) \(\frac{16}{5} - \frac{7}{5} \) (n) \(\frac{4}{3} - \frac{1}{2} \)
- Q.2 Sarita bought \(\frac{2}{5} \) metre of ribbon and Lalita \(\frac{3}{4} \) metre of ribbon. What is the total length of the ribbon they bought?
- Q.3 Naina was given \(1\frac{1}{2} \) piece of cake and Najma was given \(1\frac{1}{3} \) piece of cake. Find the total amount of cake was given to both of them.
- Q. 4. Fill in the boxes: (a) \(\square - \frac{5}{8} = \frac{1}{4} \) (b) \(\square - \frac{1}{5} = \frac{1}{2} \) (c) \(\frac{1}{2} - \square = \frac{1}{6} \)
- Q.5 Complete the addition-subtraction box.
- Q6 A piece of wire \(\frac{7}{8} \) metre long broke into two pieces. One piece was \(\frac{1}{4} \) metre long. How long is the other piece?
- Q.7 Nandini’s house is \(\frac{9}{10} \) km from her school. She walked some distance and then took a bus for \(\frac{1}{2} \) km to reach the school. How far did she walk?
- Q.8 Asha and Samuel have bookshelves of the same size partly filled with books. Asha’s shelf is \(\frac{5}{6} \) th full and Samuel’s shelf is \(\frac{2}{5} \) th full. Whose bookshelf is more full? By what fraction?

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