Oblicz:
a) 2 1/3 x ¾ + 5 3/8 : 5 ½ =
e) 2 2/3 : 1 3/5 + (4 ½ x 1 2/3 – 3 ¾) =
a)
e)
a)7/3x3/4+43/8 / 11/2= 7/4+43/8x8/11=7/4+43/44=77/44+43/44=120/44=2, 32/44= 2, 8/11
b) 8/3 / 8/5+(9/2*5/3-15/4)=5/3+(15/2-15/4)=5/3+(30/4-15/4)=5/3+15/4=20/12+45/12=65/12= 5, 5/12
9/2*5/3 skracamy 9 z 3. otrzymujemy wtedy 15/2
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a)
e)
a)7/3x3/4+43/8 / 11/2= 7/4+43/8x8/11=7/4+43/44=77/44+43/44=120/44=2, 32/44= 2, 8/11
b) 8/3 / 8/5+(9/2*5/3-15/4)=5/3+(15/2-15/4)=5/3+(30/4-15/4)=5/3+15/4=20/12+45/12=65/12= 5, 5/12
9/2*5/3 skracamy 9 z 3. otrzymujemy wtedy 15/2