Bonjour
5)
a. 7/25 x 50/14 = 350/350 = 1
b. 1/3 x 6/7 = 6/21 = (3 x 2) / (3 x 7) = 2/7
c. 9 x 1/27 = 9/27 = (9 x 1) / (9 x 3) = 1/3
6)
a.. 3/4 x 14 = 42/4 = (2 x 21) / (2 x 2) = 21/2
b. 9/4 : 15/14 = 9/4 x 14/15 = 126/60 = (6 x 21) / (6 x 10) = 21/10.
c. 5 : 30/7 = 5 x 7/30 = 35/30 = (5 x 7) / (5 x 6) = 7/6.
