2025-03-02

Correct Questions:

1. $\frac{1}{2}+\frac{1}{4}=21$
2. $\frac{5}{6}-\frac{1}{3}=65-31$
3. 38×25=\frac{3}{8} \times \frac{2}{5} =83​×52​=
4. 49÷23=\frac{4}{9} \div \frac{2}{3} =94​÷32​=
5. Convert 74\frac{7}{4}47​ to a mixed number.
6. 312+234=3 \frac{1}{2} + 2 \frac{3}{4} =321​+243​=
7. 910−35=\frac{9}{10} - \frac{3}{5} =109​−53​=
8. 23×9=\frac{2}{3} \times 9 =32​×9=
9. 512+712=\frac{5}{12} + \frac{7}{12} =125​+127​=
10. Simplify 1824\frac{18}{24}2418​.

Questions with Errors:

1. 35+27=512\frac{3}{5} + \frac{2}{7} = \frac{5}{12}53​+72​=125​ (Error in addition method)
2. 49−13=36\frac{4}{9} - \frac{1}{3} = \frac{3}{6}94​−31​=63​ (Incorrect subtraction)
3. 27×35=521\frac{2}{7} \times \frac{3}{5} = \frac{5}{21}72​×53​=215​ (Incorrect multiplication)
4. 58÷23=1024\frac{5}{8} \div \frac{2}{3} = \frac{10}{24}85​÷32​=2410​ (Incorrect division method)
5. Convert 113\frac{11}{3}311​ to a mixed number: 2132\frac{1}{3}231​ (Incorrect conversion)
6. 414+212=5344 \frac{1}{4} + 2 \frac{1}{2} = 5 \frac{3}{4}441​+221​=543​ (Incorrect addition of mixed numbers)
7. 56−14=42\frac{5}{6} - \frac{1}{4} = \frac{4}{2}65​−41​=24​ (Incorrect subtraction)
8. 6×25=12306 \times \frac{2}{5} = \frac{12}{30}6×52​=3012​ (Incorrect multiplication and simplification)
9. 78+12=810\frac{7}{8} + \frac{1}{2} = \frac{8}{10}87​+21​=108​ (Incorrect addition and simplification)
10. Simplify 1535=515\frac{15}{35} = \frac{5}{15}3515​=155​ (Incorrect simplification)