Let's solve each expression step by step:
(1 - 3/4) • (5/4 - 3/4)= (4/4 - 3/4) • (5/4 - 3/4)= (1/4) • (2/4)= 2/16= 1/8
14 • (1/2 + 1/3 + 1/4)= 14 • (6/12 + 4/12 + 3/12)= 14 • (13/12)= 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 - 3) / 28= 5 / 28
Therefore, the results are:
Let's solve each expression step by step:
(1 - 3/4) • (5/4 - 3/4)
= (4/4 - 3/4) • (5/4 - 3/4)
= (1/4) • (2/4)
= 2/16
= 1/8
14 • (1/2 + 1/3 + 1/4)
= 14 • (6/12 + 4/12 + 3/12)
= 14 • (13/12)
= 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 - 3) / 28
= 5 / 28
Therefore, the results are:
(1 - 3/4) • (5/4 - 3/4) = 1/814 • (1/2 + 1/3 + 1/4) = 15 1/61/3 • 6/7 - 1/7 • 3/4 = 5 / 28