Answer
1. \( 1 \frac{2}{4} \times 3 \frac{5}{6} = 5 \frac{3}{4} \)
2. \( 1 \frac{1}{6} \times 2 \frac{6}{12} = 2 \frac{11}{12} \)
3. \( 2 \frac{1}{2} \times 3 \frac{4}{5} = 9 \frac{1}{2} \)
4. \( 3 \frac{1}{3} \times 1 \frac{4}{10} = 4 \frac{2}{3} \)
5. \( 3 \frac{3}{4} \times 3 \frac{2}{9} = 12 \frac{1}{12} \)
6. \( 3 \frac{5}{6} \times 2 \frac{1}{2} = 9 \frac{7}{12} \)
7. \( 1 \frac{1}{2} \times 3 \frac{1}{2} = 5 \frac{1}{4} \)
8. \( 1 \frac{8}{12} \times 3 \frac{2}{10} = 5 \frac{1}{3} \)
9. \( 3 \frac{2}{6} \times 3 \frac{2}{3} = 10 \frac{4}{9} \)
10. \( 3 \frac{4}{5} \times 2 \frac{3}{4} = 10 \frac{1}{20} \)
11. \( 1 \frac{3}{4} \times 1 \frac{2}{4} = 2 \frac{1}{2} \)
12. \( 2 \frac{4}{5} \times 1 \frac{1}{12} = 3 \frac{1}{6} \)
13. \( 1 \frac{5}{8} \times 2 \frac{6}{8} = 4 \frac{1}{4} \)
14. \( 3 \frac{2}{3} \times 1 \frac{1}{2} = 5 \frac{1}{6} \)
Solution
To multiply mixed numbers, we first convert them into improper fractions, then multiply the fractions, and finally convert the result back into a mixed number if necessary. Let's solve each problem step by step.
### 1. \( 1 \frac{2}{4} \times 3 \frac{5}{6} \)
1. Convert to improper fractions:
- \( 1 \frac{2}{4} = \frac{4 \cdot 1 + 2}{4} = \frac{6}{4} \)
- \( 3 \frac{5}{6} = \frac{6 \cdot 3 + 5}{6} = \frac{23}{6} \)
2. Multiply the fractions:
\[
\frac{6}{4} \times \frac{23}{6} = \frac{6 \cdot 23}{4 \cdot 6} = \frac{138}{24}
\]
3. Simplify:
\[
\frac{138}{24} = \frac{69}{12} = 5 \frac{9}{12} = 5 \frac{3}{4}
\]
### 2. \( 1 \frac{1}{6} \times 2 \frac{6}{12} \)
1. Convert to improper fractions:
- \( 1 \frac{1}{6} = \frac{6 \cdot 1 + 1}{6} = \frac{7}{6} \)
- \( 2 \frac{6}{12} = \frac{12 \cdot 2 + 6}{12} = \frac{30}{12} = \frac{5}{2} \)
2. Multiply the fractions:
\[
\frac{7}{6} \times \frac{5}{2} = \frac{7 \cdot 5}{6 \cdot 2} = \frac{35}{12}
\]
3. Convert back to mixed number:
\[
\frac{35}{12} = 2 \frac{11}{12}
\]
### 3. \( 2 \frac{1}{2} \times 3 \frac{4}{5} \)
1. Convert to improper fractions:
- \( 2 \frac{1}{2} = \frac{5}{2} \)
- \( 3 \frac{4}{5} = \frac{19}{5} \)
2. Multiply the fractions:
\[
\frac{5}{2} \times \frac{19}{5} = \frac{5 \cdot 19}{2 \cdot 5} = \frac{19}{2}
\]
3. Convert back to mixed number:
\[
\frac{19}{2} = 9 \frac{1}{2}
\]
### 4. \( 3 \frac{1}{3} \times 1 \frac{4}{10} \)
1. Convert to improper fractions:
- \( 3 \frac{1}{3} = \frac{10}{3} \)
- \( 1 \frac{4}{10} = \frac{14}{10} = \frac{7}{5} \)
2. Multiply the fractions:
\[
\frac{10}{3} \times \frac{7}{5} = \frac{10 \cdot 7}{3 \cdot 5} = \frac{70}{15} = \frac{14}{3}
\]
3. Convert back to mixed number:
\[
\frac{14}{3} = 4 \frac{2}{3}
\]
### 5. \( 3 \frac{3}{4} \times 3 \frac{2}{9} \)
1. Convert to improper fractions:
- \( 3 \frac{3}{4} = \frac{15}{4} \)
- \( 3 \frac{2}{9} = \frac{29}{9} \)
2. Multiply the fractions:
\[
\frac{15}{4} \times \frac{29}{9} = \frac{15 \cdot 29}{4 \cdot 9} = \frac{435}{36}
\]
3. Convert back to mixed number:
\[
\frac{435}{36} = 12 \frac{3}{36} = 12 \frac{1}{12}
\]
### 6. \( 3 \frac{5}{6} \times 2 \frac{1}{2} \)
1. Convert to improper fractions:
- \( 3 \frac{5}{6} = \frac{23}{6} \)
- \( 2 \frac{1}{2} = \frac{5}{2} \)
2. Multiply the fractions:
\[
\frac{23}{6} \times \frac{5}{2} = \frac{115}{12}
\]
3. Convert back to mixed number:
\[
\frac{115}{12} = 9 \frac{7}{12}
\]
### 7. \( 1 \frac{1}{2} \times 3 \frac{1}{2} \)
1. Convert to improper fractions:
- \( 1 \frac{1}{2} = \frac{3}{2} \)
- \( 3 \frac{1}{2} = \frac{7}{2} \)
2. Multiply the fractions:
\[
\frac{3}{2} \times \frac{7}{2} = \frac{21}{4}
\]
3. Convert back to mixed number:
\[
\frac{21}{4} = 5 \frac{1}{4}
\]
### 8. \( 1 \frac{8}{12} \times 3 \frac{2}{10} \)
1. Convert to improper fractions:
- \( 1 \frac{8}{12} = \frac{20}{12} = \frac{5}{3} \)
- \( 3 \frac{2}{10} = \frac{32}{10} = \frac{16}{5} \)
2. Multiply the fractions:
\[
\frac{5}{3} \times \frac{16}{5} = \frac{16}{3}
\]
3. Convert back to mixed number:
\[
\frac{16}{3} = 5 \frac{1}{3}
\]
### 9. \( 3 \frac{2}{6} \times 3 \frac{2}{3} \)
1. Convert to improper fractions:
- \( 3 \frac{2}{6} = \frac{20}{6} = \frac{10}{3} \)
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