oblicz: a)3/4razy2/3+2 4/5 b)(2 1/3-1 3/4):7/8 pli$$$
a)3/4*2/3+2 4/5=1/2+2 4/5= 5/10+2 8/10=2 i 13/10=3 i 3/10
b)(2 i 1/3-1 i 3/4):7/8=(2 i 4/12- 1 i 9/12):7/8= (1 i 16/12- 1 i 9/12):7/8=7/12: 7/8= 7/12* 8/7= 8/12=2/3
Pozdro i powodzenia w szkole
a)3/4 · 2/3 +2⁴/₅ =6/12 + 14/5 =1/2 +14/5 =5/10 +28/10 =33/10 =3 ³/₁₀=3,3
b) (2⅓-1¾ ) : 7/8 = (7/3 -7/4 ) : 7/8 =( 7/3 · 8/7) - (7/4 · 8/7) = 8/3 - 8/4 =
32/12 - 24/12 = 8/12 = 2/3
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a)3/4*2/3+2 4/5=1/2+2 4/5= 5/10+2 8/10=2 i 13/10=3 i 3/10
b)(2 i 1/3-1 i 3/4):7/8=(2 i 4/12- 1 i 9/12):7/8= (1 i 16/12- 1 i 9/12):7/8=7/12: 7/8= 7/12* 8/7= 8/12=2/3
Pozdro i powodzenia w szkole
a)3/4 · 2/3 +2⁴/₅ =6/12 + 14/5 =1/2 +14/5 =5/10 +28/10 =33/10 =3 ³/₁₀=3,3
b) (2⅓-1¾ ) : 7/8 = (7/3 -7/4 ) : 7/8 =( 7/3 · 8/7) - (7/4 · 8/7) = 8/3 - 8/4 =
32/12 - 24/12 = 8/12 = 2/3