1a. [pmath]1/4[/pmath] X 3 = [pmath]3/4[/pmath] 1g. [pmath]3/7[/pmath] + [pmath]2/7[/pmath] = [pmath]5/7[/pmath]
1b. [pmath]1/6[/pmath] X [pmath]5/7[/pmath] = [pmath]5/42[/pmath] 1h. [pmath]9/10[/pmath] – [pmath]5/10[/pmath] = [pmath]4/10[/pmath]
1c. [pmath]1/5[/pmath] X [pmath]2/3[/pmath] = [pmath]2/15[/pmath] 1i. [pmath]5/7[/pmath] X [pmath]2/6[/pmath] = [pmath]10/42[/pmath]
1d. [pmath]1/8[/pmath] X [pmath]2/3[/pmath] = [pmath]2/24[/pmath] 1j. [pmath]3/8[/pmath] + [pmath]7/8[/pmath] = [pmath]10/8[/pmath]
1e. [pmath]5/6[/pmath] – [pmath]2/6[/pmath] = [pmath]3/6[/pmath] 1k. [pmath]3/4[/pmath] X [pmath]3/4[/pmath] = [pmath]9/16[/pmath]
1f. [pmath]1/3[/pmath] X [pmath]1/5[/pmath] = [pmath]1/15[/pmath] 1l. [pmath]4/10[/pmath] X [pmath]10/4[/pmath] = [pmath]40/40[/pmath] = 1
2. [pmath]2/12[/pmath], [pmath]4/1[/pmath] x [pmath]2/12[/pmath] = [pmath]8/12[/pmath], [pmath]12/12[/pmath] – [pmath]8/12[/pmath] = [pmath]4/12[/pmath]
3. [pmath]4/20[/pmath], [pmath]5/1[/pmath] x [pmath]4/20[/pmath] = [pmath]20/20[/pmath] = 1, No
4. [pmath]5/16[/pmath] + [pmath]3/16[/pmath] = [pmath]8/16[/pmath], [pmath]16/16[/pmath] – [pmath]8/16[/pmath] = [pmath]8/16[/pmath]
5. [pmath]2/8[/pmath] + [pmath]2/1[/pmath] x [pmath]2/8[/pmath] = [pmath]2/8[/pmath] + [pmath]4/8[/pmath] = [pmath]6/8[/pmath], [pmath]8/8[/pmath] – [pmath]6/8[/pmath] = [pmath]2/8[/pmath]
6. [pmath]2/16[/pmath] + [pmath]3/16[/pmath] + [pmath]4/16[/pmath] + [pmath]6/16[/pmath] = [pmath]15/16[/pmath]