Question

Calculati
1)5-2/3-1/4+3-5
2)-5+2-1/3+3-1/2
3)3/2-(-5/4)+(-7/5)-(-41/40)
4)(-2/3)+(-3/4)-1/5-(-1)
5)(-2/3)x(6/5)+1/2x(-4/3)-(-2)x3/10
6)(1/2-1/3)x(1/2+1/3)x(-1)
7)(-4)x(-3/8)x(-3/8-3/8x5/3)
8)0.8x(0.75-1/4)x(-2)
Va rog ajutatima dau 20 puncte coroana si toate cele ajutatima va roggggggg!!!!

Answer 1

1)5-2/3-1/4+3-5
-2/3-1/4+3
-8-3+36/12
25/12
2)-5+2-1/3+3-1/2
0-1/3+3-1/2
0-5/6
-5/6
3).
3/2-(-5/4)+(-7/5)-(-41/40)
3/2+5/4+(-7/5)-(-41/40)
3/2+5/4-7/5-(-41/40)
3/2+5/4-7/5+41/40
19/8
4)
(-2/3)+(-3/4)-1/5-(-1)
-2/3+(-3/4)-1/5-(-1)
-2/3-3/4-1/5-(-1)
-2/3-3/4-1/5+1
37/60
5)
(-2/3)×(6/5)+1/2×(-4/3)-(-2)×3/10
-2/3×6/5+1/2×(-4/3)-(-2)×3/10
-2/3×6/5-1/2×4/3-(-2)×3/10
-2/3×6/5-1/2×4/3+2×3/10
-2×2/5-1/2×4/3+2×3/10
-2×2/5-2/3+2×3/10
-2×2/5-2/3+3/5
-4/5-2/3+3/5
-4/5-2/3+3/5
-13/15

6) (1/2-1/3)×(1/2+1/3)×(-1)
1/6×(1/2+1/3)×(-1)
1/6×5/6×(-1)
-1/6×5/6×1
-1/6×5/6
-5/36

7)
(-4)×(-3/8)×(-3/8-3/8×5/3)
(-4)×(-3/8)×(-3/8-1/8×5)
(-4)×(-3/8)×(-3/8-5/8)
(-4)×(-3/8)×(-1)
-4×3/8×1
-4×3/8
-3/2

0.8x(0.75-1/4)x(-2)
4/5×(0.75-1/4)×(-2)
4/5×(3/4-1/4)×(-2)
4/5×1/2×(-2)
-4/5×1/2×2
-4/5