Oblicz ulamki. a) 3x7/8= b) 8/7x3= c) 2x1 1/7= d) 2 1/5x3= e) 5x10 1/2= f) 10x8 2/3= g) 5x7/10= h) 2/7x14= i) 2/18x12 j) 4x5 5/12= k) 6 2/8x6= l) 3x5 5/6= Na jutro potrzebuje.
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a) 3x7/8 = 21/8 = 2 5/8
b) 8/7x3 = 24/7 = 3 3/7
c) 2x1 1/7 = 2 * 8/7 = 16/7 = 2 2/7
d) 2 1/5x3 = 11/5 * 3 = 33/5 = 6 3/5
e) 5x10 1/2 = 21/2 * 5 = 105/2 = 52 1/2
f) 10x8 2/3 = 26/3 * 10 = 260/3 = 86 2/3
g) 5x7/10 = 75/10 = 7 5/10 = 7 1/2
h) 2/7x14 = 28/7 = 4
i) 2/18x12 = 24/18 = 1 8/18 = 1 4/9
j) 4x5 5/12= 65/12 * 4 = 260/12 = 65/3 = 21 2/3
k) 6 2/8x6 = 50/8 *5 = 250/8 = 125/4 = 31 1/4
l) 3x5 5/6 = 35/6 * 3 = 105/6 = 35/2 = 17 1/2
Liczę na naj :)Tak przy okazji to nie używaj "x" jako mnożenia ^^