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a fost răspuns

Efectuează 2/5×6/7 11/12×3/35 1/21×3/55×11/23×7/2 32/3×25/4 101/15×36/202 210/9×8/315

Răspuns :

EuElisa
12/35
33/300
77/17710
200/3
36/30
1680/2835
2/5x6/7 =2x6/5x7= 12/35

11/12x3/35 = (simplificam 12 si 3 cu 3 si obtinem) = 11/4x1/35 =11/4x35=11/140

1/21x3/55x11/23x7/2=(se imparte 21 si 3 cu 3 obtinem) 1/7x1/55x77/46 =   77/385x46= 77/17710

32/3x25/4 = 32x25/3x4=800/12

101/15x36/202= 101x36/15x202=3636/3030 (simplificam cu 3) = 1212/1010 (simplificam cu 2) = 606/505

210/9x8/315 = (impartim pe 210 si 315 cu 5 obtinem) = 42x8/9x63= 336/567




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