Let's solve each expression step by step:
1−3/41 - 3/41−3/4 • 5/4−3/45/4 - 3/45/4−3/4 = 4/4−3/44/4 - 3/44/4−3/4 • 5/4−3/45/4 - 3/45/4−3/4 = 1/41/41/4 • 2/42/42/4 = 2/16= 1/8
14 • 1/2+1/3+1/41/2 + 1/3 + 1/41/2+1/3+1/4 = 14 • 6/12+4/12+3/126/12 + 4/12 + 3/126/12+4/12+3/12 = 14 • 13/1213/1213/12 = 182/12= 15 1/6
1/3 • 6/7 - 1/7 • 3/4= 2/6 • 6/7 - 1/7 • 3/4= 12/42 - 3/28= 4/14 - 3/28= 2/7 - 3 /28= 8−38 - 38−3 / 28= 5 / 28
Therefore, the results are:
Let's solve each expression step by step:
1−3/41 - 3/41−3/4 • 5/4−3/45/4 - 3/45/4−3/4 = 4/4−3/44/4 - 3/44/4−3/4 • 5/4−3/45/4 - 3/45/4−3/4 = 1/41/41/4 • 2/42/42/4 = 2/16
= 1/8
14 • 1/2+1/3+1/41/2 + 1/3 + 1/41/2+1/3+1/4 = 14 • 6/12+4/12+3/126/12 + 4/12 + 3/126/12+4/12+3/12 = 14 • 13/1213/1213/12 = 182/12
= 15 1/6
1/3 • 6/7 - 1/7 • 3/4
= 2/6 • 6/7 - 1/7 • 3/4
= 12/42 - 3/28
= 4/14 - 3/28
= 2/7 - 3 /28
= 8−38 - 38−3 / 28
= 5 / 28
Therefore, the results are:
1−3/41 - 3/41−3/4 • 5/4−3/45/4 - 3/45/4−3/4 = 1/814 • 1/2+1/3+1/41/2 + 1/3 + 1/41/2+1/3+1/4 = 15 1/61/3 • 6/7 - 1/7 • 3/4 = 5 / 28