-What is 1.53 times 0.75 + 0.53 times three quarters - 3.4 times 0.75

-What is 1.53 times 0.75 + 0.53 times three quarters - 3.4 times 0.75

-1.53 times 0.75 + 0.53 times three quarters - 3.4 times 0.75
=(-1.53+0.53-3.4)×0.75
=(- 4.4) × 3 / 4
=-3.3

3 / 4 times 1 / 5 plus 3 / 4 times 2 / 5 plus 0.75 times 3 / 5 minus 3 / 4

3 / 4 times 1 / 5 plus 3 / 4 times 2 / 5 plus 0.75 times 3 / 5 minus 3 / 4
=3/4×（1/5+2/5+3/5-1）
=3/4×1/5
=3/20

(9-3.75 times 2 / 3) △ 3 and 5 / 7
Simple calculation

(9-15/4*2/3)/(26/7)=(13/2)/(26/7)=7/4

(- 17) times 7 / 4-1.75 times (- 10) + (- 1 + 4 / 3) times 5

Original formula = (- 17) * 7 / 4-7 / 4 * (- 10) + (- 1 / 4) * 5
=（-7）*7/4-5/4
=-27/2