Find a difference a) 1 1/4 - 1/2 b) 1 1/6 - 1/3 c) 1 1/5 - 2/7 d) 1 1/2 - 4/5 also paint as you made it

128
A) the general substitute 4 (means 1/2 we multiply by 2 that substitute was 4): 11/4-1/2=11/4-2/4=11-2/4=9/4=2 1/4 b) the general substitute 6 (1/3*2 means) 11/6-1/3=11/6-2/6=9/6=3/2=1 1/2 c) the general substitute 35 (1/5*7 and 2/7*5 means) 1/5-2/7=7/35-10/35=-3/35 d) the general substitute 10 (1/2*5 and 4/5*2 means) 1 1/2-4/5=5/10-8/10 =-3/10 =-0, 3
137
Answer add